Ok, so the Rabbi is being audited, when the tax inspector calls, he says to the rabbi, "well ,I see here you buy a LOT of matzo balls, what do you do with the leftovers?"
Rabbi, " after a year or so, we take all the leftovers back to the factory and sometimes they send us a free box or two back",
Tax Inspector, " OK, looks like you get through a LOT of candles, what do you do with the stubbs?"
Rabbi, " oh, we never let anything go to waste, we save all the ends and once again, we send them back to the factory and every so often they send us back a free box ."
Tax Inspector ( thinking NOW he will catch the Rabbi out) " I see here you do a LOT of circumcisions, now WHAT do you do with all those foreskins?"
Rabbi, " We collect them all up, send them to the Inland Revenue and once in a while they send us a complete DICK"