A group of doctors were out duck hunting, when a large bird flew overhead.
The family doctor raised his gun to shoot, but then lowered his gun saying “I am not sure that is a duck.”
The psychiatrist raised his gun, but then lowered it again saying “I know it’s a duck, but I’m not sure that it knows it’s a duck.”
The surgeon raises his gun and blasts the bird out of the sky. He turns to the pathologist and says “Go see if that was a duck.”
A mechanic was removing a cylinder head from the engine of a Harley Davidson motorcycle when he spotted a well-known heart surgeon in his shop. The mechanic shouted across the garage, “Hey, Doc, can I ask you a question?”
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 the 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 and leaned over, and whispered to the mechanic… “Try doing it with the engine running”