I really dont think hes that stupid. He was on the honor roll at WVU and he did that coming out of the school systems at college park. He talks like he does with the double negatives and whatnot because of where he grew up.
He just has a short fuse and has no self control when hes pissed. You may have had a friend like that; i have actually had a few. just look at his rap sheet. Its bar brawl, bar brawl, arguing with woman, arguing with woman, charge at a cop.
Now granted those are stupid actions but anger does that to people.