Today I saw the opposite. I was at Wal-Mart (don't stone me) getting some misc. items and the person in front of me was totally ignoring the clerk. He was friendly and polite and she was, well...not. He said hello, and nothing, he gave her the total and she threw a bill on the belt, and then he even said thank you and she picked up her cell phone and walked away.
I was next and I felt bad for the guy so I was extra nice to him. He definitely thought I was hitting on him because I may or may not have laid it on too thick trying to overcompensate for the jerk ahead of me.
Why can't we all just get along?