I ask, "Jealous much?" or, "If you knew what it felt like, you would kill the doctor who circumcised you".
I used to take it. Guys would act disgusted, or like they were cleaner. Now that I'm older, I take shit from no one. It does me no good to be hurt, and it does them no good to stay ignorant. I challenge. They learn, either that foreskins are a good thing, or that making fun of them is not cool.