One day a Catholic priest goes to a barber for a haircut. After the
haircut, he asks the barber how much he owes. The barber says, "For a
man of the cloth, the haircut is free!"
The priest thinks "What a nice man!" The next day the barber finds
a case of wine outside his shop.
Then, a minister comes in for a haircut. Again, the barber tells him that the
haircut is free. The minister thinks "What a nice man!" The next day,
the barber find a box of chocolates outside his shop.
Then, a rabbi comes in for a haircut. Again, the barber gives the haircut
on-the-house. The rabbi thinks "what a nice man!" The next day, the barber
finds a long line of rabbi's outside his shop!