Best joke ever imho, there was once upon a time a college philosophy class and here was the final, a nervous group of students looked at the piece of paper in front of them and waited for the go ahead, which came and as everyone took a look a single question arose, "why?" that was only question on the test. Most students laid out their best theory of life the universe band everything except one, who laughed, wrote something, turned it in, and left. The grades came in and all wondered what that students grade was, how dare they, and the prof soon let them know the one that wrote the least got the highest grade, they wrote "why not?"