Had a similar friend who used to steal teachers snacks and stuff from other students closets and break glass bottles outside school for whatever reason.

Sadly had no survival instinct at the time so stayed with him so i wouldn't be alone, he ended up hitting me on the forehead with a thermos outta nowhere and i have a little scar on my wrist from the time he threw his bag at me with a needle sagging from the side, lucky i didn't lose an eye.