Have you ever wondered why mechanics make less money than cardiologist?

Question by Kitty 2: Have you ever wondered why mechanics make less money than cardiologist?
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 and 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

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