The mechanic waved to the surgeon and shouted "I have a question for you!"
The surgeon, a bit surprised, walked over to the mechanic working on the motorcycle.
The mechanic straightened up, wiped his hands on a rag and asked, "So Doc, look at this engine. I open its heart, take its valves out, fix 'em, put 'em back in, and when I finish, it works just like new. So how come I get such a small salary and you get the really big bucks, when you and I are doing, basically, the same work?"
The surgeon paused, smiled, leaned over and whispered to the mechanic, "Try doing it with the engine running."
