A business man got on an elevator. When he entered, there was a blonde
already inside who greeted him with a bright,"T-G-I-F."

He smiled at her and replied, "S-H-I-T."

She looked puzzled, and repeated, "T-G-I-F," more slowly.

He again answered, "S-H-I-T."

The blonde was trying to keep it friendly, so, she smiled her biggest
smile and said as sweetly as possibly, "T-G-I-F."

The man smiled back to her and once again, "S-H-I-T."

The exasperated blonde finally decided to explain,
"'T-G-I-F means Thank Goodness It's Friday. Get it duuhhh?"

The man answered, "'S-H-I-T' means "Sorry, Honey, It's Thursday"

good one!