A gynecologist was getting sick of his job and decided that he needed a
career change. Held always enjoyed tinkering with engines so thought held
become a mechanic. So he went along to mechanics school and the final test
was to strip the engine completely and reassemble it ~ obviously back into
perfect working order. So our ex- gynecologist did the test and anxiously
awaited the result. The day he received the results he got quite a
surprise, he got 150%! He quickly phoned the instructor and queried the
mark. The instructor said "no that's right. First I gave you 50% for
stripping down the engine - a very thorough job. Next I gave you 50% for
reassembling it - a fantastic job really, and then I gave you a 50% bonus
for doing it all through the exhaust pipe.