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...