Now, I can kind of understand his reaction to killing the raid boss. My guild once took one down after weeks of trying, and several people cheered so loud that they then had to go put their kids back to sleep (my guild is mostly relatively casual players in their 30s and 40s, and includes my mother-in-law and brother-in-law). But doing it at 3am is absolutely a dick move, and he definitely deserves what he got from you.

Your parents are assholes

Speaking as a former insomniac, why do people always tell chronic insomniacs to drink tea? Do you guys really think they haven't thought about that themselves already? Along with taking a relaxing bath, clearing your mind, and a bunch of insultingly obvious bullcrap. Some people just can't sleep and need serious help.

The insomniac isn't the one playing WoW? How very odd.

I have absolutely no ******* clue what you are talking about. What planet do you come from anyway?

Dinosaur slaying

Explain to your parents why you did what you did, that might calm them down a bit especially if they knew that you had insomnia.

That's what circuit breakers are for. Figure out which one his room is on and cut the power to it before you go to bed and he'll never wake you up because of that again. Or play WoW all night again, at least until he figures that out.

I have absolutely no possible idea what in the world you are talking about.

Okay, looked it up online and understand what it is now. A fantasy computer game that he spends all his time and energy on and can get so angry that he destroys hundreds of dollars of your clothing? A game that will never, ever earn him a dime in the real world? As soon as i had good locks on my door with me having the only key my ass would be in his bedroom cutting his underwear into tiny pieces and daring him to escalate the situation.