As a gamer, I never tip unless the waiter says he was circumcised and he's wearing a fedora. I never tip the females since they already get enough easy money from men by flaunting their disgusting lady parts (which they won't ever let me play with since I'm too much of a "nice guy.") They'll come around when their boobs start sagging and thus their money dries up and they'll come crying back from their string of neanderthal jock boyfriends. But by then it'll be too late and I'll coolly tell her to kill herself, like a sir.