This sentence actually made me smile ;D

If a beautiful girl tells you she’s done some modelling work in the past, and you ask her what 3D package she used… you might be a Game Developer.

(04/11/02) Courtesy of Harm Cuppens
Taken from The Game AI Page: You might be a game developer if …

But the other entries weren’t that great. Like a game developer is just another computer geek. I should compile my own list, collaborating with my colleagues..