Quote from Niles in Merry Christmas, Mrs. Moskowitz
Martin: I don't know how to be Jewish. Niles: Well, just answer questions with a question. Martin: Like what? Niles: What, I have to explain everything? Martin: Can't you give me an example? Niles: What, I should give you an example? Martin: Are you going to help me or not? Niles: You're saying I'm not being helpful? Martin: Oh, forget it!