There once was a college professor who didn't buy into the whole "there's no such thing as a stupid question" philosophy. Every year when he had a new class he instructed the students to ask him as many stupid questions as they could think of on the first day. That way, he figured, there'd be a minimized amount of stupidity for the duration of the term. The professor thought he'd heard every stupid question there was and didn't laugh no matter what his students asked him, not even a smirk. Then, finally, a student asked something that he'd never heard before. The question made him laugh so hard he couldn't stand up. A lanky, tomboyish girl raised her hand with a wry smile on her face, stood up and asked, "What is a question?"