Have you ever noticed a colleague being harassed by another, and what did you do about it?

harassment is like a pocket crime now, why do you assume the other considers it as harassment?

I’ve messaged the person privately and then passed along what I saw to someone higher up (in-house council or chief-of-staff, we don’t have HR). Nothing was done about it and the person continues to be harassed

(back story, had already gotten a manager fired at this company for continually whacking or grabbing my crotch and for using lewd and insulting nicknames. We are both guys) Had a manager who was a real piece of shit. Saw him make dinner plans with some girl half his age and then turn around and call his wife (and mother of his three kids) and tell her he had to work late. Anyway, witnessed him harassing a girl at work and then berating her when she asked to be left alone. I asked the girl if she wanted to call HR and I'd support her. She said no, so I called HR myself against her wishes. HR comes in for interviews, manager gets fired as does another guy everyone liked (and I guess was less obvious with his shit) and it turns into this huge mess where everyone is mad at everyone else and the girl gets harassed by others for snitching. I let people know I called it in, that it's illegal, the guy was a piece of shit, and if anyone continues to harass her I'd call their ass in too. This of course brings up that I had just gone through this less than two years earlier and I'm apparently a whiny bitch who calls HR all the time, but at least the blow back is on me and I don't give a shit. (It's a lot easier to burn down the place when you don't care I guess). Anyway she got super frustrated over the environment and quit a few weeks later, never found out who was still harassing her, and I didn't have many friends at work until I left. So it totally sucked and the victim bore a lot of the fallout, but I'd do it again. Fuck anyone who would do that. The only downside is it's not super public so those assholes can still get work. This was also a few years back and I feel the climate might be a little more supportive now.

I had a boss total bromance chaser. He was obsessed with finding his perfect Bro. This one guy on the team became his favorite and this other guy started to harrass this fovorite interrupting everything he said, saying mean things to him. This is all men. I’m a woman so i just got all the complex problems to solve and nerd out while the BROs tried to focus on bromance. But if a manager does favoritism, its not that guys fault that he ended up to be the chosen one. I talked to the abuser and to the abused about how this conflict was not healthy. The favorite switched teams so he didnt feel harrassed by the abuser, and didnt have to put in hours and hours of chatting time to satisfy the managers bromantic demands. The abuser was let go.