Image text: Oh God, the tornado picked up snakes!

This is one of those xkcd's that's super emo. These are always a little awkward for me to read.

However, my interpretation of the second frame is that the black haired character is speaking in reference to relationships and dating and the like.  She keeps turning away potential suitors with her phrase.

I don't think she keeps saying that every year to keep from becoming a storm chaser.

What's your interpretation of this Friday's emo xkcd?  Who is emotional about what to whom?

Image text: Three headstones down, I got a call from my mom and it went from bad to worse.

The character in the comic is talking on his hands free headset to the person on the other end of the phone call and everyone else in the comic thinks he is speaking directly to the dead person.  It appears the family to the right is gasping and the female is covering the child's eyes.

The talk of font makes it seem like the person on the phone is making a comment on the font on the gravestone.  Or an alternate interpretation is that the person on the phone is saying that the dead person died because they did not listen and used another font besides sans-serif.

Additionally, another place that is bad to use your hands-free headset? Anywhere.  Those things are annoying.

Image text: You'll be moved up from 49 of ~7 billion to 31 of ~7 billion.

Joshing means joking and the approximately 7 billion people is the population of the planet Earth.

Image text: And every day it gets harder to fight the urge to su to the user and freak people out.

This is a play on words with "Ghost in the/a Shell".  Ghost in a shell is a concept from cyberpunk and especially the Japanese franchise by the name "Ghost in the Shell" that means when a human's brain and consciousness is inside a mechanical body.  Ghost is the person and shell is the mechanical exterior.

In this comic, the play on words is saying if a person dies, they leave a "ghost" of themselves still logged on a server. And of course zShell is a Unix login shell.  Which pulls the whole play on words together.

And the image text references "su to the user". Su is the Unix command to switch to another user from the command line.