[SMOKNAC]

A mechanic was removing the cylinder-head from the engine of a car he was repairing, when he spotted a well-known cardiologist in his workshop.

The cardiologist was there waiting for the service manager to come and take a look at his car 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 under the bonnet.

The mechanic straightened up, wiped his hands on a rag and asked, 'So Doc, look at this engine. I opened 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 $25 grand a year and you make $500 grand when you and I are doing basically the same work?'

The cardiologist paused, leaned over, and then whispered to the mechanic...


'Try doing it with the engine running.'