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steve f A Greek fellow gets a haircut, as he goes to pay the Barber, the barber replies, 'I am sorry, I cannot accept money from you; I am doing Community Service'. The Greek guy of course is very happy and leaves the shop. The next morning when the Barber goes to open his shop, he finds a dozen Greeks waiting for a haircut . 
(No offense Jim... You can substitute any group for 'Greek')