Humour

In case you haven't read this before!!!

A mechanic was removing a cylinder-head from the motor of a
Harley motorcycle when he spotted a well-known cardiologist in his shop.
The cardiologist was there waiting for the service manager to come
take a look at his bike when the mechanic shouted across the garage ....."
Hey Doc, want to take a look at this?"
The cardiologist, a bit surprised, walked over to where the mechanic
was 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, repair
any damage, and then put them back in, and when I finish, it works just
like new. "
...."So how come I make $39,675 a year (a pretty small salary) and you
get the really big bucks ($1,695,759) .....when you and I are doing
basically the same work ?"
The cardiologist paused, smiled and leaned over, then whispered
to the mechanic...''Try doing it with the engine running."