Also, towards the end, when the older guy desperately wants to shake hands, I was thinking: "Don't do it. Big mistake." The younger guy holds off for a while, but eventually gives in -- and he gets caught in a vice and the whole harangue starts up again.
Don't shake hands with a jerk if you can help it.
I think it was the older man's fault at first. He was talking to the phone and the noise was too loud. The youth wanted to stop him so he tapped that guy's shoulders. But the older man then started the whole thing.