it looks like most of the guys were just trying to get the guy to calm down, but I can't tell whats happening in the beginning in the corner.
It's from this video. I think the two older guys showed up on the scene and started off trying to break up a fight, until one of them loses his shit when one of the younger ones continued to stir things up. Then apparently the old guy just went berserk and decided they all had to be taken out:
Some people do keep them as pets, though it is illegal in some states, IIRC. They are intelligent and mischievous and have hands, so definitely not for someone looking for a low-maintenance companion.
The hell you say. The best thing about cats and dogs is that they lack opposable thumbs, so their ability to make mischief is somewhat limited. A raccoon would burn your house down trying to cook bacon and then would steal your car. To buy more bacon. While the house burns down.