In the mid-nineties I went to middle school at a really bad school (even though it was in a nice neighborhood) the kids were really bad; there were fights constantly, tons of us smoked cigarettes and/or weed, lots of kids were having sex, etc.
There were these two brothers in my school that were kinda known troublemakers, and the younger brother get into some argument with this really big for his age tall, lanky, kinda nerdy kid during PE class. After the period was over we dressed back out into school clothes, and when I went outside from the gym locker room; *both* brothers were beating the absolute shit out of this kid. I missed most of the fight, but at the end they had kicked him a bunch while he was down, and he was kind of writhing in pain flat on his back. The younger brother that had started the altercation proceeded to then literally get a running start and field goal kicked the kid's front teeth out of his mouth. It was brutal.
I really hated that school, but I especially just didn't like other boys at that age; everyone was always testing each other and starting fights. In elementary school fights just result in a black eye or somebody crying, but by middle school people are hitting puberty and are capable of dealing real damage. It's that combination of being capable of significant harm and adolescent boys constantly having to test each other that I really hated; anyone that went to a rough middle school can probably attest, it's a bad combination. Especially because 90% of the time the fights were over some completely stupid pointless bullshit like "What are you looking at?" or because someone accidentally bumped into someone or whatever.
I saw the lanky kid again in high school and he had his teeth fixed, no idea if they were able to be reattached or if he had implants.