At a local land rover dealership a mechanic was removing the cylinder head from a Td5 Discovery when he spotted a well known heart surgeon in reception. The surgeon was waiting for the servive manager to have a look at his Range Rover when the mechanic shouted across the garage "hello doc, can i ask you a question"
The surgeon, a bit surprised, walked across the garage to where the mechanic was working. The mechanic straightened up, wiped his hands on his overalls and asked, "so doc, look at this engine. I open its heart, take the valves out, repair and restore any damage, and put them all back in, when i've finished it works again like new. So, why is it that i get such a small salary and you get such a large one when we are doing the same job."
The surgeon paused, smiled, leaned over and whispered to the mechanic
"try doing it with the engine running"
Geoff