Change of career ( Archived) (3)

After several years as an Ob-Gyn, a doctor decides he's tired of what he's been doing and wants to change his career. He wonders what other type of work he can do. After a while, the Ob-Gyn remembers how much he liked automotive class in school and, since he's good with his hands, he decides to become an auto mechanic. He enrolls at the community college automotive school.

Upon his completion of his course, the final exam consists of taking a car engine apart and putting it back together. The doctor turns in his final project and, to his astonishment, receives a grade of 150%. After class, the Ob-Gyn says to the instructor, "You know, I've gotten plenty of 100%'s in my life, but how does someone get 150% ?"

"Well," responds the instructor, "I gave you 50% for taking the engine apart, 50% for putting the engine back together and .... another 50% for doing everything through the muffler"!