At the end of tax year, the IRS sent a revenue agent to examine / audit the books of a synagogue. While he was checking the books he turned to the Rabbi and said: ‘I notice you buy a lot of candles. What do you do with the candle drippings?
‘Good question,’ noted the Rabbi. ‘We save them up and send them back to the candle makers, and every now and then they send us a free box of candles.’
‘Oh,’ replied the auditor, somewhat disappointed that his unusual
question had a practical answer. But on he went, in his obnoxious
way: ‘What about all these biscuit purchases? What do you do with the crumbs?’
‘Ah, yes,’ replied the Rabbi, realizing that the inspector was trying
to trap him with an unanswerable question. ‘We collect them and send them back to the manufacturers, and every now and then they send a free box of holy biscuits.’
‘I see,’ replied the auditor, thinking hard about how he could
fluster the know-it-all Rabbi. ‘Well, Rabbi,’ he went on, ‘what do
you do with all the leftover foreskins from the circumcisions
you perform?’
‘Here, too, we do not waste,’ answered the Rabbi. ‘What we do is
save up all the foreskins and send them to the IRS, and about
once a year they send us a complete dick ‘.