I heard a story about a student who walked into the wrong classroom during
finals week. Since the classes are so large it wasn't obvious at first
that anything was wrong. As soon as he got a test, he realized that he
was in the wrong place. So, he got up, stormed to the front of the class,
slammed the paper on the desk and said, "This test is TOO DA*N HARD!" and
stormed out, to a cheering class.