So you're filling out Census 2010 and wondering just what box should you check for ethnicity? Comedian and proud parent of Pootie Tang LOUIS CK will do the work for you. He asks the tough questions, like, "What color is your skin? A) Yellow, B) Brownishly white, C) kind of a 'jewy' color." Or "What is your father's first name? A) Teddy, B) Binky doodles, C) Pappy Lappy Nappy Flappy, D) Cher." Ten times out of 10 you're Mexican, but at least you know.