Explain xkcd: It's 'cause you're dumb.
On the off chance that there is an XKCD reader that isn't already familiar with it, the full text of the shirt that is only partially visible in the comic is, "Do not meddle in the affairs of Dragons, for you are crunchy and taste good with ketchup!"mwburden (talk) 19:20, 23 October 2014 (UTC)