@stiegele@kazamakj I think it's so he won't lose track of it later on for reattachment (if that's a thing in the era). He could of left it there but who know what could of happened like an animal/infection etc. I might be over thinking it but it's my guess on why he bit (really holding his arm in place while the other is used in the fight.) his arm.
I feel like the characters are just getting more dumb, like why are they talking like he went out of his way to offend them when he is only fighting in self defense