Another one from boarding school that isn't related to me exactly but is related to anger:
We used to only be able to access certain websites on a whitelist. I brought in a proxy via a USB one weekend and it started spreading a ton and soon enough a stuffload of people had access to the internet. It eventually ended up just being used for research all the time. Anyways the dude in the room across the hall from me (I could see into his room when both our doors were open during study hours or whatever) was pretty well known for being explosive as forget. He got busted watching hentai, and they found like 30GB of research saved on his computer, so naturally they banned him from using the computer for like a long ass time. After sitting in his room for like 3 hours bored as forget, he eventually got super angry, stood up, grabbed his computer monitor, and straight up 360° THREW that stuff through his second story window.
I was just kinda sitting there watching it happen, pretty funny stuff
I used to have blind fits of easily brought about rage quite frequently. It went away when I was diagnosed and started taking medication for my ADHD.
Interestingly enough I've always figured I might have some kind of attention disorder, but my parents "don't believe" in ADHD so I was never diagnosed with it. I'll probably go see a doc about it now that I'm a legal adult.