A gynecologist had become fed up

[Ninja]

A gynecologist had become fed up with high cost of malpractice
insurance and was on the verge of being burned out. Hoping to find
another career where skillful hands would be beneficial, he decided to
make a major career change and become a Harley mechanic.

He found out from the local community college what was involved,
signed up for the classes and learned all he could.

When the time for the practical exam approached, the former
gynecologist prepared carefully for weeks and completed the exam with
tremendous skill.

When the results came back, he was surprised to find that he had
scored 150%. He called the instructor, saying "I don't want to appear
ungrateful for such an outstanding result, but I wondered if there was
an error."
The instructor said, "During the exam, you took the engine apart
perfectly, which was worth 50% of the total mark. You also put the
engine back together perfectly, which is also worth 50% of the mark."
The instructor went on to say, "I gave you that extra 50% because you
did all of it through the muffler."