This story was relayed to me, so I didn't actually witness it, but given the circumstances I don't doubt it.
I have a friend named Dennis and another friend named Tony. Dennis has fetal alcohol syndrome and is kinda wacky besides that--he once told a guy he could "hear" his emotions.
One night while Dennis was sleeping on Tony's couch he decided to kill himself in Tony's truck, so he took it out in the middle of the night on a northern Alberta highway in the winter and rolled it. He didn't die or even injure himself severely.
A few months later he got out of the psych unit and was staying with a woman of some significance in Tony's life whom I will describe later as the punchline. Tony caught wind of this one early morning after drinking all night and likely getting high. Normally he's a decent guy but he had been going through some things around this time.
So Tony and his friend Ross (may have been someone else but it was Ross in my head) went to see Dennis. The woman wouldn't allow them into the house for obvious reasons, but Tony took it upon himself to climb in a window and ambush Dennis in the kitchen, who had been woken up by the commotion.
Tony attacked Dennis and proceeded to flip right the fuck out. This beating he delivered to Dennis included throwing a coffee maker and plates at him, tearing doors off of cupboards to hit him with, and punching his first through the front of the microwave.
Once Dennis was on the floor--still conscious, mind you, but terrified--Tony proceeded to beat him in some sort of deluded WWE style which included him jumping straight up in the air and then driving his fist into Dennis' head.
Ross was watching this in stitches because Tony had effectively kicked a kitchen's ass while not harming Dennis in any significant way, all while the woman screamed "YOU'RE SICK! YOU'RE SICK! at the top of her voice.
Remember the punchline I mentioned? Well this situation was so fucked up because a while before this, Tony's uncle had shot her husband to death while she was watching.
Seriously.