8 year old boy bedwetting?

ADHD isn't a real thing. Don't glorify it. It's him, not some magical made up disease forcing him to be an asshole.

Medical corporations and psychologists laugh all the way to the bank every time someone uses the term "ADHD". He's an asshole, maybe he has a reason. I don't know.

I think he's desperately lonely and unable to cope. He's trying to feel important and fit in. Leave him alone and don't challenge him.