>>508738125
What is he doing when he suddenly gets on the ground? Why is he doing that?

It wouldn't surprise me if this was a case of intrusive thoughts OCD where you suddenly get impulses to do random acts of violence. He indulged his OCD then his brain glitched and he got on the ground. It's almost like he had to do a little ritual on the ground before leaving. Was that OCD too somehow? I don't get it.