I went to Trader Joes last night to stock-up on lite popcorn and chicken empanadas. At the checkout station, the cashier said "Hello" as he began to ring my items. When he was done and all the food had been bagged, I said, "Thank you. I appreciate your help today." He looked solidly into my eyes and replied, "My pleasure."
I was unnerved. He broke the unwritten law of You Don't Make Eye Contact...the law that I silently challenge all cashiers to break.
He was one of the few to do it, and I was shaken.