Your description sound like methamphetamine psychosis.
Don't even get me started on meth heads... but they are a completely different animal than pot heads. The only mind altering substances the police found in the guys house was pot and beer.
The funny part of the story is that after he unsuccessfully tried to shoot me and when the police were just starting to show up. He ran out the back door and into his garage... still naked and started up a lawn mower inside. The police sergeant asked me if that would kill him. I said that I doubted it, that he would probably just force himself out in a few minutes. And sure enough five or so minutes later he came out coughing and sputtering and wanting medical attention.