Menachem Jokes

Menachem needs his tallis dry-cleaned. He sends it to the best dry cleaner in town, Ho Chi Wung Cleaners.
They tell him to come back in a week.
When he comes back, they give him the bill, which says $50.00.
"Fifty dollars to clean my tallis?!", Menachem reads, astonished.
"No, no, no!" replies the dry-cleaner. "Five dollars to clean tallis, forty-five dollars to take out all knots!