It'd be really funny if Louis thought his wound was fatal but no, he just needs patching up. I'm not sure what kind of wound Louis will get, maybe a stab?

It could be Unclear who started the fight. Did he bite the Interloper in self defense or was he hangry? Maybe Louis will lie his ass off, maybe he'll tell her the truth... Maybe she'll feel conflicted over whether he is a creature she should put down... All good stuff!!!

ETA: NPC Elias Toufexis is my pick if you'd like! What if his last words were "I never asked for this" because I'm a memelord