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 God, It's Friday.' Get it, duuhhh?"

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