An old motorbike mechanic was removing a cylinder head from the motor of a Suzuki when he spotted his heart surgeon in his shop looking at some accessories. The mechanic shouted , "Hey Dr, take a look at this?" The cardiologist, a bit surprised, walked over to where the mechanic was working on the motorcycle. " Dr, look at this engine. I open its' heart, take the valves out, repair the damage, and then put the heart of the engine back together, and when I finish,it works just like new. So how come I make $55 a hour and you earn $750 a hour when you and I are doing basically the same work?" The cardiologist paused, then whispered to the mechanic, ''Try doing it with the engine running."