Cyanide & Happiness @ Explosm.net
When I was in college, a group of us (including GWIII) used to play a game called Battlegroup Alpha. One of the guys had all of his warships labelled "Do Not Eat" … just in case. You never know when you're going to run into a giant hungry Mutant Star Goat; you can only hope that if you do, he's literate.
ADDENDUM: "Never try to scare a Call of Cthulhu player. Those guys are insane."