Kinda funny all the people being WTF about him being in trouble with bleeding everywhere - you must have gone to schools where the teachers and admins gave a shit, huh? In my experience he'd be in trouble for getting the floor dirty at the very least & if there was suspected fighting, the bullied always end up bloodied and obvious so get in trouble, but the perps are unharmed and deny everything and get away with it.
Kinda like adult life with cops, ya know? Honest people fucked over and arseholes do what they want