A nun and a man were standing in an elevator. Being the nice person that she was she looked over at him, smiled and said: "T.G.I.F."
The man looked back at her and said: "S.H.I.T."
The nun was shocked. She turned to the man and said: "There was no reason to be rude, all I said was "Thank God It's Friday".
The man looked back at her and said: "Well you must have misunderstood me because all I said was, "Sorry Honey It's Thursday"