Thanks, I was looking for something that was outside the sphere of the normal people being aggressive. I've never wrestled (It's not really a thing over here in the same way that it is the states) but I've always been impressed when I've seen it. Same with martial arts, those are more of a thing over here.

I think you're right, most people are insecure in public places and insecure with their public personas. This can lead to unusual and nervous behaviours that are beginning to be characterised as 'aggressive'- fuelling a society already anxious enough about how it is perceived. The whole thing becomes a vicious repeating cycle.

As you said, best just to do your thing.