 And the teacher walks in. All right, everybody, come to attention. We're going to have a pop quiz. And what happens then? Group groan. Because the pop quiz counts towards your grade at the end of the semester or whatever it was that you were in. So the pop quiz is dreaded. If it was just for funsies, if it was just going to be trivia, let's talk about celebrities. Well, then it's a different thing.