S-H-I-T
 

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 possible, "T-G-I-F." The
man smiled back at her and once again replied, "S-H-I-T." The exasperated
blonde finally decided to explain. "T-G-I-F means 'Thank Goodness It's
Friday.' Get it, duhhh?" The man answered, "S-H-I-T means 'Sorry, Honey,
It's Thursday.'"

Hehe, it had me wondering where its going.

repeat but stilll funny!!

This exact thing actually happened to me before work one day. The guy speaking was named Dennis. He was socially inept. He actually said, So Happy It's Thursday. I laughed my ass off.

that was kinda intresting, would be great in person

It all came together last second. It was quite humorous.