A business man approached an elevator and was greeted by a blonde inside who said "T.G.I.F" with a big smile.
The man smiled and replied with "S.H.I.T" and proceeded to get into the elevator.
The woman was puzzled and said again "T.G.I.F" slowly just incase he misheard her.
The man looked at her and said again "S.H.I.T" at the same speed.
The woman was trying to keep it friendly so she put on her biggest smile and said once more "T.G.I.F"
But the man just smiled back and said "S.H.I.T"
Finally giving up, she explains to the man "T.G.I.F stands for Thank goodness its Friday. Get it? Duh!!"
The business man looks at the blonde and says "and S.H.I.T stands for 'Sorry Honey, It's Thursday'"