My  barber gave a haircut to a priest one day. The priest tried to pay for the haircut, but my barber refused, saying, "you do God's work."

The next morning the barber found a dozen bibles at the door to his shop.

A firefighter  came to my barber for a haircut, and again my barber refused to accept any payment , saying, "you protect the public."

The next morning the barber found a dozen doughnuts at the door to his shop.

A lawyer came to my barber for a haircut, and again my barber refused payment, saying, "you serve the justice system."

The next morning the barber found a dozen lawyers waiting for a free haircut.