Oh... I like the answer.

I think I'm going to steal it!

I was once stopped at the market by a woman who, in a /very/ loud voice did a:

"I've always wanted to know! What do you scotsmen wear under your kilt!"

Without missing a beat, I matched her voice:

"I've always wanted to know! What do you women wear under your skirt!"

There was dead silence in the meat department of Giant Eagle, until her husband started to giggle. She then fixed him with a death glare and moved on.