Morris the loudmouth mechanic was removing the cylinder heads from the motor of
a car when he spotted the famous heart surgeon Dr. Michael DeBakey, who was
standing off to the side, waiting for the service manager to come take a look at
Morris shouted across the garage, "Hey DeBakey! Is dat you?
"Come on ova' here a minute."
The famous surgeon, a bit surprised, walked over to where Morris the mechanic
was working on the car. Morris straightened up, wiped his hands on a rag and
asked argumentatively, "So Mr. Fancy Doctor, look at dis here work. I also open
hearts, take valves out, grind 'em, put in new parts, and when I finish dis baby
will purr like a kitten. So how come you get da big bucks, when you an' me is
doing basically da same work?"
Dr. DeBakey leaned over and whispered to Morris the loudmouth mechanic.
"Try doing it with the engine running."