The last thing you want to do at an atheist convention is to announce at the end of a session, “There is a provocative fundamentalist Christian protesting outside, DO NOT GO TALK TO HIM.” This means that half of the attendees will rush outside until Jesus returns.Between crazy protesters, bar crawls with PZ, costume party dinners, and all of my godless friends being in one place, I'm really sad I didn't go. Oh well, next year!
EDIT: I wish I could read everything on this guy's shirt. I love playing the "How many horrible sinning categories apply to me?" game. If I'm under 50%, I lose.