Hahasob, it's more like boiling blood, which comes with its own set of problems. BUT YES. I do remember emo!mura, and while Kamui prefers a challenge, an easy target looks pretty damn nice when he has an under-the-counter medical bill he can't let his family find out about. His reputation would have been bigger outside of the school than in (until he effed up), but it was definitely whispered about.

D'aaw, haha. Well, Kamui himself would act like he didn't even remember doing it, or worse, bring it up in casual conversation like it was no big deal. At the same time, he wouldn't hesitate to wave Miyamura down to say hi and pull at his hair to count his piercings (because what is personal space) and act friendly while still being an enormous jackass because that's just who he is with everyone.