After thirty years of a fulfilling gynecology practice, the veteran doctor decides it's time for a career change. Still wanting to work with his hands, he decides to enroll in a Automotive Technologies Trade School, in the hopes of becoming an Auto Mechanic.

Once classes began, the doctor found himself enjoying his studies. Others in his class were much younger and most just as enthusiastic and perhaps a little faster, but this did not bother him much. As the training progressed, the time came for final exams, and as in his studies from long ago, he practiced with great vigor.

On the day of his final exam, the test began and ended. And to him, all went very well. It was a timed test, and as this thorough doctor's practice was, he took the entire four hours to complete his test, though the younger class mates all finished long before him.

The next day, exam scores were posted. A few 70% scores, many 80's and 90's, a 100% here and there. Our vigilant doctor received a final exam score of 150%. This made the good doctor curious, even though he was sure he did very well. So he visited the professor seeking an explanation for his high test score. The professor was very happy to explain, and said "The test was broken down into two parts; for the first part, you were to take apart an engine. You did this very well, so for labeling, cleaning, and breaking down the engine in the correct order, I gave you 50 points.

"The second part of the exam, you were to reassemble the engine. For measuring, examining, and reassembling the engine in the correct order, I gave you another 50 points.

The last 50 points I gave you as extra credit, because you did it all through the tale pipe."