"During the war I took a Jewish family into my home and hid them in the attic to protect them from the Nazis."

Priest: "That's not a sin - that's a Good Deed - you saved their lives! Why do you think it was a sin?"

"Well, uh, I, uh, [cough] charged them rent for all the months they stayed with me."

"Well, that wasn't the nicest thing to do but you had expenses, you had to feed your family, so that wasn't such a terrible sin - is there anything else?"