A gynecologist decides that he needs a change of pace, so he leaves the medical field to become an auto mechanic.
After many months laboring at auto mechanic school, the day finally comes to take his final exam.
He takes the exam and completes it in the required time, then leaves.
When he gets his exam grade in the mail, he is shocked, yet pleasantly surprised to find that his final grade on the exam is 200%.
As he reviews the exam in closer detail, he notices some remarks written by the professor, which read:
"50% for taking the engine apart correctly, 50% for putting it back together correctly, and an extra 100% for doing it all through the muffler."