Interviewer: You've long argued for the decriminalization of marijuana. Do you smoke weed?
Barney Frank: No.
Interviewer: Why not?
Barney Frank: Why do you ask a question, then act surprised when I give an answer? Do you think I lie to people?
Interviewer: I thought you might explain why you support decriminalizing it but don't smoke it.
Barney Frank: Do you think I've ever had an abortion?
(source)
He is an amazing man. I hope he will start working on some news show as the voice of reason.