What a shitty chapter. Where was the teacher? Why wasn't the janitor handling this? What happened to cause so much blood? Did he get his skull smashed open? There's no background for us to tell if he was standing next to a desk or something like that.
Huh I feel like this one is pretty out of place for this series, there wasn't really anything extreme or bad enough between the 2 characters, it's really a accident this time