T.G.I.F.

A blonde steps into an elevator, smiles at the man already on, and says," T-G-I-F."

The man smiles and says," S-H-I-T."

The blonde smiles back and replies," T-G-I-F."

The man again smiles and says," S-H-I-T."

The blonde looks confused. She answers the man, and says, "Thank goodness its Friday."

The man smiles and replies, "Sorry honey, its Thursday."