There was a guy in the same row as me at the Motley Crue concert who kind of looked like Charles Manson. I was a bit afraid when he and his friend entered the row and sat next to me. Yet during the pre-concert wait, he was the most polite person imaginable. He passed me at least 5 times to go get another beer, and said “I’m sorry” each time. In fact, the entire crowd at Madison Square Garden was very well-behaved. A woman in the row in front of me was really getting into the circular rotating head banging move. (Not for older necks, believe me!) 
Her cell phone fell out of her pocket during her gyrations, and all the people around her helped her to find it on the floor under the seats. If I was hoping for a mob scene, as in the metal heydays of old, this was not the place to find it. Even on the floor, I didn’t see any jostling or body surfing. Just a number of devil symbols from raised arms. Is this a sign of the times, of the post-911 drone-targeted US citizens curbing their wilder impulses? Or are New Yorkers just polite, friendly people, kind of like Canadians?