This just found my way into my e-mail box, courtesy of fellow B-Teamer Catherine Garcia (who gets a Fedora Doff). While I have heard it before, it is still amusing.
The children were lined up in the cafeteria of a Catholic elementary school for lunch. At the head of the table was a large pile of apples. The nun made a note and posted it on the apple tray:
"Take only ONE. God is watching."
Moving further along the lunch line, at the other end of the table was a large pile of chocolate chip cookies. A child had written a note:
"Take all you want. God is watching the apples. "