You know how sometimes you’re at the checkout counter at the store and there are two open cash registers but only one line. The thing to do in this situation is wait in that one line; it’s very obvious. This last weekend I was in this one line, and a guy walked past the line and up to the other register. Against my better judgment I pointed out that there was a line. He pointed out that there was no line at this register. I plainly said, “Yeah, there’s just one line for both registers.” Still, all very obvious, courteous talk. He then proceeds to threaten to beat me up, and the person who was walking to the other register walks right past it and leaves the store, dropping her merchandise on the way out. There’s just no reasoning with these line cutters. I just waited my turn, and told myself I’d claimed the moral high ground.