Rude person: "No kids yet? Better hurry up."
You: "You're right. I should be fornicating with George now, instead of talking to you.
Rude person: "Is that a dye job?"
You: "No, it’s a family of nits. Have some."
Rude person: "Get a life."
You: "Get a soul."
Rude person: "Where have you been hiding?"
You: "Places with nicer people."