Hi!~~ I can't said what I would do because I never had any students in this level, maybe a couple of 'bad students' but I had never get involved in the fights, I always send them to the principle's office and said to them that I am just doing my job. And there was never bullying cases in the schools that I teached (and yes, I teach in public schools, not private), so even in the scenario of bullying I can't say exactly what I would do. Of course I would never stand still if I know that something like this is happening, I just don't know what I would do exactly. About the webtoon though, I have to say is pretty good and they are punishing real bad people, so I find pretty satisfying lol
I'm a teacher and I would never even think of doing this kind of stuff with my students... But I have to say that it's very satisfying to read about it.