A Fiat Spider Club member was removing the cylinder head from his car when a good friend of his, who is a well-known heart surgeon popped in to see what he was doing.
So he said to his friend: “ Doctor, can I ask you a question?
I’ve just opened up the heart of this engine, taken the valves out, fixed ‘em, put ‘em back in and, when I’ve finished, it ‘ll work just like new.
So how come you earn such a big salary doing basically what I’ve just done? ”
The surgeon paused, smiled, leaned over and whispered: “ Now try doing it with the engine running! ”