A mechanic and a surgeon

 

A mechanic was removing the cylinder heads from the motor of a car when he spotted the famous heart surgeon, who was standing to the side, waiting for the service manager to come to take a look at his sports car.

The mechanic shouted across the garage, “Hello Doctor! Please come over here for a minute.”

The famous surgeon, a bit surprised, walked over to the mechanic. The mechanic straightened up, wiped his hands on a rag and asked argumentatively, “So doctor, look at this. I also open hearts, take valves out, grind ’em, put in new parts, and when I finish this, it will work as a new one. So how come you get the big money, when you and me is doing basically the same work?”

The doctor leaned over and whispered to the mechanic……….. . .

“TRY TO DO IT WHEN THE ENGINE IS RUNNING”.