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		<id>https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=2297%3A_Use_or_Discard_By</id>
		<title>2297: Use or Discard By - Revision history</title>
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		<updated>2026-04-16T15:43:39Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=338827&amp;oldid=prev</id>
		<title>172.70.251.160: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=338827&amp;oldid=prev"/>
				<updated>2024-04-04T08:44:47Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 08:44, 4 April 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot; &gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 15:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For many consumer goods, the expiration dates are of minimal importance, and using them afterward risks nothing more than a drop in quality. In certain cases, however, they can have safety implications. Some foods, if kept too long, become dangerous to consume. Medications can lose their potency over time, and relying on them past the expiration date could put a person's health at risk.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For many consumer goods, the expiration dates are of minimal importance, and using them afterward risks nothing more than a drop in quality. In certain cases, however, they can have safety implications. Some foods, if kept too long, become dangerous to consume. Medications can lose their potency over time, and relying on them past the expiration date could put a person's health at risk.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In this comic, two similar emergency {{w|flare gun}}s, an item typically used to send out distress {{w|flare}}s, have slightly different expiry instructions. One has an instruction to &amp;quot;use by or discard by&amp;quot; a specific date (in this case, three days after the date of publishing).&amp;#160; The other has an instruction to &amp;quot;use by&amp;quot; this date. These two phrases almost certainly have the same intent. The older flares are, the less reliable they become, so the manufacturer recommends &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;replacing &lt;/del&gt;regularly replacing unused flares with working ones, to ensure that working flares are available in case of an emergency. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In this comic, two similar emergency {{w|flare gun}}s, an item typically used to send out distress {{w|flare}}s, have slightly different expiry instructions. One has an instruction to &amp;quot;use by or discard by&amp;quot; a specific date (in this case, three days after the date of publishing).&amp;#160; The other has an instruction to &amp;quot;use by&amp;quot; this date. These two phrases almost certainly have the same intent. The older flares are, the less reliable they become, so the manufacturer recommends regularly replacing unused flares with working ones, to ensure that working flares are available in case of an emergency. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Megan]], however, seems to take the latter instruction literally, as an order to actually fire the flare gun prior to the expiration date, whether or not it's necessary. It may be taken that she &amp;lt;em&amp;gt;wants&amp;lt;/em&amp;gt; the experience of firing a flare, and takes that instruction as an excuse to do so.&amp;#160; [[Cueball]] immediately objects to this line of reasoning. Firing a flare unnecessarily is generally a bad idea. It could summon emergency responders to a non-emergency situation, diverting emergency resources that may be needed elsewhere.&amp;#160; Even worse, if a flare is fired improperly, or in an unsafe direction, it could cause a fire and/or injuries, ironically creating an emergency situation, rather than signaling one. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Megan]], however, seems to take the latter instruction literally, as an order to actually fire the flare gun prior to the expiration date, whether or not it's necessary. It may be taken that she &amp;lt;em&amp;gt;wants&amp;lt;/em&amp;gt; the experience of firing a flare, and takes that instruction as an excuse to do so.&amp;#160; [[Cueball]] immediately objects to this line of reasoning. Firing a flare unnecessarily is generally a bad idea. It could summon emergency responders to a non-emergency situation, diverting emergency resources that may be needed elsewhere.&amp;#160; Even worse, if a flare is fired improperly, or in an unsafe direction, it could cause a fire and/or injuries, ironically creating an emergency situation, rather than signaling one. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.251.160</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=332653&amp;oldid=prev</id>
		<title>Tromag at 20:17, 10 January 2024</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=332653&amp;oldid=prev"/>
				<updated>2024-01-10T20:17:06Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 20:17, 10 January 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Many products carry a &amp;quot;Use By&amp;quot;, &amp;quot;{{w|Expiration date}}&amp;quot;, &amp;quot;Discard by&amp;quot; or similar date.&amp;#160; The date shows the latest date by which the product has been verified to provide its expected use. For example, a foodstuff will have a &amp;quot;consume by&amp;quot; date, showing the date after which the food may be unsuitable for eating. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; For &lt;/del&gt;most &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;products&lt;/del&gt;, this &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;is &lt;/del&gt;a conservative estimate, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;especially if a product is kept sealed and stored in a cool, dark place. A few products become dangerous to use after that point, some simply become stale &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;less palatable (as in &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;case of foods) or lose potency. For most consumer items, there's no immediate imperative to discard a product as soon as it expires; you simply take the risk of a decline in quality or reliability&lt;/del&gt;. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Many products carry a &amp;quot;Use By&amp;quot;, &amp;quot;{{w|Expiration date}}&amp;quot;, &amp;quot;Discard by&amp;quot; or similar date.&amp;#160; The date shows the latest date by which the product has been verified to provide its expected use. For example, a foodstuff will have a &amp;quot;consume by&amp;quot; date, showing the date after which the food may be unsuitable for eating. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In &lt;/ins&gt;most &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;cases&lt;/ins&gt;, this &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;will be &lt;/ins&gt;a conservative estimate, and the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;useful lifetime can be significantly extended by proper storage&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;One of the issues around expiration dates is that the language used &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;tends to be arbitrary &lt;/del&gt;and ambiguous. Some have explicit instructions to the consumer, such as &amp;quot;use by:&amp;quot;, others have instructions to the seller, such as &amp;quot;sell by:&amp;quot;, still others say things such as &amp;quot;best by:&amp;quot; or &amp;quot;freshest before:&amp;quot;. This can make it confusing how important it is to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;get rid of &lt;/del&gt;a given &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;product on that &lt;/del&gt;date. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;One of the issues around expiration dates is that the language used &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is decided on by the manufacturer, making them highly variable &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;often &lt;/ins&gt;ambiguous. Some have explicit instructions to the consumer, such as &amp;quot;use by:&amp;quot;, others have instructions to the seller, such as &amp;quot;sell by:&amp;quot;, still others say things such as &amp;quot;best by:&amp;quot; or &amp;quot;freshest before:&amp;quot;. This can make it confusing how important it is to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;avoid using a product past &lt;/ins&gt;a given date.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;In this comic&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;two similar emergency {{w|flare gun}}s&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;an item typically used to send out distress {{w|flare}}s, have slightly different expiry instructions. One has an instruction to &amp;quot;use by or discard by&amp;quot; &lt;/del&gt;a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;specific date (&lt;/del&gt;in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;this case&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;three days after the date of publishing).&amp;#160; The other has an instruction to &amp;quot;use by&amp;quot; this date. These two phrases almost certainly &lt;/del&gt;have &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the same intent&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;There would be no reason &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;actually fire the flare&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; Even the instructions to discard the flare gun really just mean that the manufacturer cannot guarantee that it will work &lt;/del&gt;past the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;printed &lt;/del&gt;date&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, and so do not advise counting on it in an emergency situation&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;For many consumer goods&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the expiration dates are of minimal importance&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and using them afterward risks nothing more than &lt;/ins&gt;a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;drop &lt;/ins&gt;in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;quality. In certain cases, however&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;they can &lt;/ins&gt;have &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;safety implications&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Some foods, if kept too long, become dangerous &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;consume&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Medications can lose their potency over time, and relying on them &lt;/ins&gt;past the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;expiration &lt;/ins&gt;date &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;could put a person's health at risk&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Despite &lt;/del&gt;this &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;implication&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[[Megan]] seems to take the latter instruction literally&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;as &lt;/del&gt;an &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;order &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;actually fire the &lt;/del&gt;flare &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;gun prior &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the expiration &lt;/del&gt;date, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;whether or not it's necessary. It may be taken that she &amp;lt;em&amp;gt;wants&amp;lt;/em&amp;gt; &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;experience &lt;/del&gt;of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;firing a flare, and takes that instruction as an excuse to do so&lt;/del&gt;.&amp;#160; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[[Cueball]] immediately objects &lt;/del&gt;to this &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;line of reasoning&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Firing a flare unnecessarily is generally a bad idea&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;It could summon emergency responders to a non-emergency situation&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;diverting emergency resources that may be needed elsewhere.&amp;#160; Even worse&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;if a flare is fired improperly&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;or &lt;/del&gt;in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;an unsafe direction, it could cause a fire and/or injuries, ironically creating &lt;/del&gt;an emergency &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;situation, rather than signalling one. This was the cause of a serious fire at a Frank Zappa concert in Montreux in December 1971, which inspired the well known song (and infamous guitar riff) &amp;quot;{{w|Smoke on the Water}}&amp;quot; by {{w|Deep Purple}}&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In &lt;/ins&gt;this &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;comic&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;two similar emergency {{w|flare gun}}s&lt;/ins&gt;, an &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;item typically used &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;send out distress {{w|&lt;/ins&gt;flare&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;}}s, have slightly different expiry instructions. One has an instruction &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;use by or discard by&amp;quot; a specific &lt;/ins&gt;date &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(in this case&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;three days after &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;date &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;publishing)&lt;/ins&gt;.&amp;#160; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The other has an instruction &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;use by&amp;quot; &lt;/ins&gt;this &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;date&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;These two phrases almost certainly have the same intent&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;The older flares are&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the less reliable they become&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;so the manufacturer recommends replacing regularly replacing unused flares with working ones&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;to ensure that working flares are available &lt;/ins&gt;in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;case of &lt;/ins&gt;an emergency. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text similarly indicates that Megan &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;intends to follow the same &lt;/del&gt;instructions &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;with &lt;/del&gt;a can of {{w|bear spray}}.&amp;#160; Since there are no bears present, she &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;will &lt;/del&gt;go camping and leave her food out to attract &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;their attention&lt;/del&gt;, so that she may use the bear spray to repel &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;bears &lt;/del&gt;before it &amp;quot;goes bad&amp;quot;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt; This &lt;/del&gt;would &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;involve approaching bears (close enough to &lt;/del&gt;spray &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;them) and irritating them&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;potentially causing them &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;attack if &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;spray is ineffective &lt;/del&gt;or &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;misapplied (perhaps it only works &lt;/del&gt;if &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;they smell it, but Megan might spray another part of &lt;/del&gt;the bear&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;when it &lt;/del&gt;would be &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;much safer &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;simply discard &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;bear spray and not get close to bears&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[Megan]], however, seems to take the latter instruction literally, as an order to actually fire the flare gun prior to the expiration date, whether or not it's necessary. It may be taken that she &amp;lt;em&amp;gt;wants&amp;lt;/em&amp;gt; the experience of firing a flare, and takes that instruction as an excuse to do so.&amp;#160; [[Cueball]] immediately objects to this line of reasoning. Firing a flare unnecessarily is generally a bad idea. It could summon emergency responders to a non-emergency situation, diverting emergency resources that may be needed elsewhere.&amp;#160; Even worse, if a flare is fired improperly, or in an unsafe direction, it could cause a fire and/or injuries, ironically creating an emergency situation, rather than signaling one. &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text similarly indicates that Megan &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;encountered similar &lt;/ins&gt;instructions &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;on &lt;/ins&gt;a can of {{w|bear spray}}.&amp;#160; Since there are no bears present, she &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;intends &lt;/ins&gt;go camping and leave her food out to attract &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;bears&lt;/ins&gt;, so that she may use the bear spray to repel &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;them &lt;/ins&gt;before it &amp;quot;goes bad&amp;quot;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Clearly, this &lt;/ins&gt;would &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;be a bad idea. While bear &lt;/ins&gt;spray &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;is a useful emergency measure&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;there are many reasons why it could fail &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;protect &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;user, which would risk severe injury &lt;/ins&gt;or &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;death. Even &lt;/ins&gt;if the bear &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;spray effectively protected Megan&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;deliberately baiting wildlife so that you can repel them with a painful irritant &lt;/ins&gt;would be &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;irresponsible and cruel. In both cases, the humor derives from the language that appears &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;instruct &lt;/ins&gt;the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;use of an emergency product, even if no emergency has occurred. In both cases, taking such instructions literally would risk causing injuries, rather than preventing them&lt;/ins&gt;. &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Expiration dates (for food) have also been mentioned in [[737: Yogurt]], [[1109: Refrigerator]], and [[2178: Expiration Date High Score]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Expiration dates (for food) have also been mentioned in [[737: Yogurt]], [[1109: Refrigerator]], and [[2178: Expiration Date High Score]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Tromag</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=296699&amp;oldid=prev</id>
		<title>172.70.242.197: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=296699&amp;oldid=prev"/>
				<updated>2022-10-14T23:46:13Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 23:46, 14 October 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot; &gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 15:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In this comic, two similar emergency {{w|flare gun}}s, an item typically used to send out distress {{w|flare}}s, have slightly different expiry instructions. One has an instruction to &amp;quot;use by or discard by&amp;quot; a specific date (in this case, three days after the date of publishing).&amp;#160; The other has an instruction to &amp;quot;use by&amp;quot; this date. These two phrases almost certainly have the same intent. There would be no reason to actually fire the flare.&amp;#160; Even the instructions to discard the flare gun really just mean that the manufacturer cannot guarantee that it will work past the printed date, and so do not advise counting on it in an emergency situation.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;In this comic, two similar emergency {{w|flare gun}}s, an item typically used to send out distress {{w|flare}}s, have slightly different expiry instructions. One has an instruction to &amp;quot;use by or discard by&amp;quot; a specific date (in this case, three days after the date of publishing).&amp;#160; The other has an instruction to &amp;quot;use by&amp;quot; this date. These two phrases almost certainly have the same intent. There would be no reason to actually fire the flare.&amp;#160; Even the instructions to discard the flare gun really just mean that the manufacturer cannot guarantee that it will work past the printed date, and so do not advise counting on it in an emergency situation.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Despite this implication, [[Megan]] seems to take the latter instruction literally, as an order to actually fire the flare gun prior to the expiration date, whether or not it's necessary. It may be taken that she &amp;lt;em&amp;gt;wants&amp;lt;/em&amp;gt; the experience of firing a flare, and takes that instruction as an excuse to do so.&amp;#160; [[Cueball]] immediately objects to this line of reasoning. Firing a flare unnecessarily is generally a bad idea. It could summon emergency responders to a non-emergency situation, diverting emergency resources that may be needed elsewhere.&amp;#160; Even worse, if a flare is fired improperly, or in an unsafe direction, it could cause a fire and/or injuries, ironically creating an emergency situation, rather than signalling one. This was the cause of a serious fire at a Frank Zappa concert in &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Montreaux &lt;/del&gt;in December 1971, which inspired the well known song (and infamous guitar riff) &amp;quot;{{w|Smoke on the Water}}&amp;quot; by {{w|Deep Purple}}.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Despite this implication, [[Megan]] seems to take the latter instruction literally, as an order to actually fire the flare gun prior to the expiration date, whether or not it's necessary. It may be taken that she &amp;lt;em&amp;gt;wants&amp;lt;/em&amp;gt; the experience of firing a flare, and takes that instruction as an excuse to do so.&amp;#160; [[Cueball]] immediately objects to this line of reasoning. Firing a flare unnecessarily is generally a bad idea. It could summon emergency responders to a non-emergency situation, diverting emergency resources that may be needed elsewhere.&amp;#160; Even worse, if a flare is fired improperly, or in an unsafe direction, it could cause a fire and/or injuries, ironically creating an emergency situation, rather than signalling one. This was the cause of a serious fire at a Frank Zappa concert in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Montreux &lt;/ins&gt;in December 1971, which inspired the well known song (and infamous guitar riff) &amp;quot;{{w|Smoke on the Water}}&amp;quot; by {{w|Deep Purple}}.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text similarly indicates that Megan intends to follow the same instructions with a can of {{w|bear spray}}.&amp;#160; Since there are no bears present, she will go camping and leave her food out to attract their attention, so that she may use the bear spray to repel bears before it &amp;quot;goes bad&amp;quot;.&amp;#160; This would involve approaching bears (close enough to spray them) and irritating them, potentially causing them to attack if the spray is ineffective or misapplied (perhaps it only works if they smell it, but Megan might spray another part of the bear), when it would be much safer to simply discard the bear spray and not get close to bears.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text similarly indicates that Megan intends to follow the same instructions with a can of {{w|bear spray}}.&amp;#160; Since there are no bears present, she will go camping and leave her food out to attract their attention, so that she may use the bear spray to repel bears before it &amp;quot;goes bad&amp;quot;.&amp;#160; This would involve approaching bears (close enough to spray them) and irritating them, potentially causing them to attack if the spray is ineffective or misapplied (perhaps it only works if they smell it, but Megan might spray another part of the bear), when it would be much safer to simply discard the bear spray and not get close to bears.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>172.70.242.197</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=283453&amp;oldid=prev</id>
		<title>Theusaf: Reverted edits by Donald Trump (talk) to last revision by CRLF</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=283453&amp;oldid=prev"/>
				<updated>2022-05-26T19:59:17Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edits by &lt;a href=&quot;/wiki/index.php/Special:Contributions/Donald_Trump&quot; title=&quot;Special:Contributions/Donald Trump&quot;&gt;Donald Trump&lt;/a&gt; (&lt;a href=&quot;/wiki/index.php?title=User_talk:Donald_Trump&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User talk:Donald Trump (page does not exist)&quot;&gt;talk&lt;/a&gt;) to last revision by &lt;a href=&quot;/wiki/index.php/User:CRLF&quot; title=&quot;User:CRLF&quot;&gt;CRLF&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;amp;diff=283453&amp;amp;oldid=281890&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Theusaf</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=281890&amp;oldid=prev</id>
		<title>Donald Trump: Reverted edit by anti-crap user</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=281890&amp;oldid=prev"/>
				<updated>2022-05-26T19:03:59Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edit by anti-crap user&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;amp;diff=281890&amp;amp;oldid=280360&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Donald Trump</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=280360&amp;oldid=prev</id>
		<title>CRLF: Reverted vandalism with User:CRLF/OneClickUndo.js</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=280360&amp;oldid=prev"/>
				<updated>2022-05-26T18:02:02Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted vandalism with &lt;a href=&quot;/wiki/index.php/User:CRLF/OneClickUndo.js&quot; title=&quot;User:CRLF/OneClickUndo.js&quot;&gt;User:CRLF/OneClickUndo.js&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;amp;diff=280360&amp;amp;oldid=278056&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>CRLF</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=278056&amp;oldid=prev</id>
		<title>Donald Trump: Reverted edit by anti-crap user</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=278056&amp;oldid=prev"/>
				<updated>2022-05-26T17:07:51Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edit by anti-crap user&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;amp;diff=278056&amp;amp;oldid=267906&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Donald Trump</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=267906&amp;oldid=prev</id>
		<title>Theusaf: Reverted edits by 👖🔥 (talk) to last revision by Jacky720</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=267906&amp;oldid=prev"/>
				<updated>2022-05-11T18:45:45Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edits by &lt;a href=&quot;/wiki/index.php/Special:Contributions/%F0%9F%91%96%F0%9F%94%A5&quot; title=&quot;Special:Contributions/👖🔥&quot;&gt;👖🔥&lt;/a&gt; (&lt;a href=&quot;/wiki/index.php?title=User_talk:%F0%9F%91%96%F0%9F%94%A5&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User talk:👖🔥 (page does not exist)&quot;&gt;talk&lt;/a&gt;) to last revision by &lt;a href=&quot;/wiki/index.php/User:Jacky720&quot; title=&quot;User:Jacky720&quot;&gt;Jacky720&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;amp;diff=267906&amp;amp;oldid=266378&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Theusaf</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=266378&amp;oldid=prev</id>
		<title>👖🔥 at 17:39, 11 May 2022</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=266378&amp;oldid=prev"/>
				<updated>2022-05-11T17:39:37Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;amp;diff=266378&amp;amp;oldid=246097&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>👖🔥</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=246097&amp;oldid=prev</id>
		<title>Jacky720: rv</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;diff=246097&amp;oldid=prev"/>
				<updated>2022-05-04T21:03:47Z</updated>
		
		<summary type="html">&lt;p&gt;rv&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2297:_Use_or_Discard_By&amp;amp;diff=246097&amp;amp;oldid=243782&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Jacky720</name></author>	</entry>

	</feed>