A businessman entered an elevator in an office building. There was a blonde already inside, who greeted him by saying: "T-G-I-F?" (letters only).

He smiled at her and replied: "S-H-I-T" (letters only)."

Puzzled, she looked at him and said: "T-G-I-F" again.

He acknowledged her remark again by answering: "S-H-I-T."

The blond was trying to be friendly, so she smiled her biggest smile and said as sweetly as possible: "T-G-I-F" once more.

The man smiled again: "S-H-I-T."

The blond finally decided to explain things, and this time she said: "T-G-I-F, Thank Goodness It's Friday, get it?"

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