You are upset because I made you see yourself. You like to think of yourself as just a man, not a white man, unless you call yourself white, with a certain kind of self-aware irony. But for me to call you a white man is unacceptable, downright racist, even if you yourself and all white people routinely say of someone “an Asiatic woman” or “a black man,” as if a black man were not just a man as you are just a man. So what if I noticed your whiteness—how unforgivable! I suppose the only thing ruder would be to notice your penis.