A postal worker finds an unstamped, poorly written envelope addressed to God. He opens it and discovers it's from an elderly lady, distressed because $100 of her grocery money has been stolen. She will be without food till the first of the month.
Concerned that the old woman would be hungry, the postal worker takes up a collection for her from his fellow co-workers, and comes up with $96. Then they have her mail carrier deliver it to her that very day.
A week late, the worker recognizes the same writing on another envelope addressed to God. He opens it to read:
THANK YOU FOR THE $100 YOU SENT ME. I WOULD HAVE GONE HUNGRY WITHOUT IT.
YOUR FAITHFUL SERVANT,
P.S. IT WAS $4 SHORT, BUT THAT WAS PROBABLY BECAUSE OF THOSE THIEVING BASTARDS DOWN AT THE POST OFFICE!"