"Final Exam" joke
The story around Harvard was that there was a graduate math course whose final always consisted of, "Make up an appropriate final exam for this course and answer it. You will be graded on both parts."
Then one year, a student answered as follows: The exam is: "Make up an appropriate final exam for this course and answer it. You will be graded on both parts."
The answer is: "Make up an appropriate final exam for this course and answer it. You will be graded on both parts."
His reasoning was that since that was the best exam the professor could write, it certainly ought to be good enough for a student. He got an A. The professor specifically prohibited that answer from then on.
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