Joke Contest - The Mechanical Gynecologist

One day, a gynecologist in the inner-city decides that after 20 years, his profession has become boring and he is going to seek another career path.  Naturally, he wishes to move into another profession where his skillful and steady hands will be put to good use.  Realizing he has always had an interest in cars, he decides to sign up for auto-mechanic classes.  The former gynecologist went to school for a year, and was now studying for his final exam.  Finally, he took the exam leaving with full confidence.
 
A week later, he receives his score on the exam and notices that he received a "150%."  Simply out of concern that there may have been an error, he called his professor and said, "Hi sir, I don't mean to sound ungrateful in any way, and I'm very happy to receive such a great score, but I was wondering how I possibly could have scored a 150% on the exam.  Is there a mistake?"
 
The professor replied, "No, there isn't a mistake.  50 Percent of the exam was taking the engine apart.  You did that perfectly and received 50 points.  The other 50 points was putting the engine back together.  You did that perfectly as well.  And I gave you another 50 points because you did the whole thing through the muffler!"

You may want to join the Forum to enter the Contest.  In the past it has always been implied that the contest was for members.  Good Joke and Good Luck