Line Cutters

Sometimes you're at the drug store and there are two open cash registers but only one line. The thing to do in this situation is wait in the one line, it's very obvious. A while ago 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 said, "Yeah, there's just one line for both registers." Still, all very obvious, courteous talk. He then threatened to beat me up, and the person who was walking to the other register walked right past it and left the store, dropping her merchandise on the way out. There's just no reasoning with these line cutters. I waited my turn, and told myself I'd claimed the moral high ground.