A mechanic was removing a cylinder head from the motor of a Harleymotorcycle when he spotted a well-known heart surgeon in his shop.The surgeon was there waiting for the service manager to come takea look at his bike.

The mechanic shouted across the garage, Hey Doc can I ask you aquestion?

The surgeon, a bit surprised, walked over to the mechanic workingon 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 valves out,fix'em, put 'em back in, and when I finish, it works just like new. Sohow 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 and leaned over, whispering to themechanic.....Try doing it with the engine running!