Bushido Man is wise, as usual. I think we, and the general public, maybe put a little too much faith in our ability to control every outcome. I was talking to a guy the other day about the arts, and when he discovered I had a black belt, he insisted the law was my hands had to registered as lethal weapons. The more I tried to dispel the myth, the more he insisted it was true. Sadly, when I asked him where he got this, he replied that he had taken some classes, and the instructor told him this. Unless Joe has incredible control of his emotions, and is completely infalible, he is putting himself and the cashier at risk. I personally would have to be completely confident that I could pull this off without injury to the cashier before I'd consider the move.