All it takes is installing cameras and if anyone is caught up doing stupid shit the shoptime is over for them, permanently if it's anything serious.
I remember one clown kid in my class back in the days put a hottish drillbit to another's kid neck acting like a cool spy or something like that (we were 14 years old, luckily got only a mild burn which healed quickly). The teacher punched him in the face, probably not with full force but it was not a soft slap either, and banned him from the shop for some time. No incidents after that.
> As someone who was shoved and occasionally bullied while operating machines like belt saws... I'm not sure it was worth it.
This. It's all fun and games until one of your classmates shoots you in the face with an air compressor while you're using a bandsaw. I still have all my fingers but did end up in trouble because everybody only saw the immediate aftermath of me making it abundantly clear how much I didn't appreciate his antics (only verbally, of course).
Perhaps with stop-saw like inventions it could be safer, if the patents ever expire so schools could actually afford them.