A conversation between the chief Rabbi of a synagogue and a visiting tax inspector…
Inspector: “You buy a great many candles. What do you do with all the wax drippings?”
Rabbi: “We save them up and send them back to the candle maker, and once in a while he sends us a free box of candles.”
Inspector: “I see. And what about the crumbs from all these biscuits?”
Rabbi: “We save those as well. We return them to the baker and every so often he sends us a free box of kosher matzos.”
Frustrated inspector: “And what happens to the left-over foreskins from all the circumcisions you perform here?”
Rabbi: “These again are not wasted. We save them up and send them to the tax office, and once a year they send us a complete dick.”