Yeah, I've lost control.
It was high school, and I went to a high school (that will remain nameless) that was basically the hellhole of the area.
Anyways, I hung out in a group of my friends... but one of my friends was friends with a huge douche, whom we called "Crazy Carl", due to him stabbing several people with pencils, in class.
Well, this guy had it out for me, for some reason, and one lunch, he was just relentless, insulting me, my mother, the whole nine yards. I was VISIBLY shaking, and extremely upset (as a friend pointed out to him). Well, lunch ended, and as I was walkig to class, just ahead of me was Carl, and he was STILL talking shit, looking back at me and laughing. I lost it.
I kinda... blacked out, I guess, because it's not really clear to me what happened. But apparently, I snuck up behind him, jumped on his back, and started punching him in the head. I was totally out of control.
In fact, someone grabbed me, and got me off his back. I was still so enraged, I turned around to punch them in the face... and it was a female friend of mine. I just BARELY got control of myself before I punched her.
From then on, I've always tried to never lose control again. I never want to hurt anyone close to me.