A Roman Catholic priest came to a barber. He got his haircut and asked the barber how much he had to pay. ‘Nothing, Father, I never charge Catholic priests,’ the barber replied. The priest was nicely surprised, and the next day the barber found twelve bottles of the finest Benedictine wine at his door.
Another day an Orthodox priest came to the same barber. He was served and asked the barber if he owed something for the job. ‘Absolutely nothing, Father, I never charge the Orthodox clergy,’ the barber said. The Orthodox priest was nicely surprised as well, and the next day the barber found twelve bottles of vodka at his door.
Some days later a rabbi came to the same barber. After he had his hair cut, he asked for a bill too. ‘You owe me nothing, rabbi. I never charge rabbis,’ the answer was. The rabbi was very much surprised too, and the next day the barber found... twelve rabbis at his door.