S-H-I-T

Judi, the dumb blonde, enters an elevator, turns to a gentleman there, smiles and says, "T-G-I-F," to which he replies "S-H-I-T."

Baffled, Judi repeats "T-G-I-F."

The gentleman smiles and responds: "S-H-I-T."

The woman quizzically looks at the gentleman and says again "T-G-I-F."

The man again replies "S-H-I-T."

The woman explains. "Sir, T-G-I-F stands for Thank God It's Friday."

And he replies, "Sorry Honey. It's Thursday."