What is something your sibling did for you, behind your back that made you emotional?

I have a story but it wasn't my sibling. My first job when I was 18 was in an abattoir/factory. At the beginning I followed most people's orders as I was new. Once I got my feet under the table and I knew what I was doing I didn't need to rely on others commands, there was one Polish guy there that still likes to tell me what to do. I liked to be helpful so I'd usually help out. But it soon turned him barking orders and then fucking off to do nothing. I realised he was taking the piss so the next time he told me what to do I told him I'd been there long enough I knew what I was doing, plus the last time he pissed off and did nothing. We argued, I told him he wasn't my boss and it was rough basically. I didn't mind helping him but I wasn't going to be pushed around. He immediately from that point onwards tried to make my time hell there. Talking about me in Polish whenever I was around, staring at me, putting me in dangerous positions (which really were dangerous if you knew the job). My Aunties boyfriend worked in the department right next to where I worked and I saw him daily. He never asked me any questions but witnessed what was going on, I never said anything to anyone but he kept an eye on the situation. Anyway, one day I'm walking down a corridor talking to my mate and about 8 hooks full of carcasses hit me in the back and I go fucking flying. Like really flying, my hard hat goes flying and it hurt. I look back and the Polish guy is walking away. I got really annoyed a d my mate calmed me down. I decided I was gonna get him back when the time was right. But I don't see this guy in work again for at least a week and when he returned he was being very nice to me. Like really nice. We ended up going out for Christmas drinks a few weeks later as a team and he's buying me drinks, I'm really enjoying being around him and I eventually would say we became friends. What I didn't know until about 10 years later is that my Auntie's boyfriend witnessed what he did with the hooks to me and at the end of the shift when most people had gone home he waited for the polish guy to be on his own and he absolutely kicked the shit out of him. Like stamping on him while he was on the floor kind of kicking, and told him exactly why he was getting the beating. Nobody told me a thing, not even the Polish guy.