In primary school, I had a guy in my class who always offended everyone: the girl pulled her hair, the boys put her legs, etc. I was lucky to sit with him on the same side. In general, many of my things were broken, my hair wiped out, and my bleaches left. I was afraid to complain directly to his mother, because I was quite small. My parents tried to talk to her at first, but she didn’t care. The father, who at the time was working in the police, decided to teach this little bitch boy. One morning he came in a police uniform, took his handcuffs, approached a classmate and said he came to take him to jail because he behaved so disgustingly. After these words, it was already apparent that the classmate would be good to change the pants. But after the dad laid his hand on his shoulder and said, say let's get your hands here, we will wear handcuffs, the classmate cried and promised that he would never behave like this again. My dad didn’t want to go to jail :)

I have to say that since then, in fact, the classmate has stopped offending me and other guys, he did not become an exemplary student, of course, but at least sitting with him was normal. We even became friends later.