Thankfully once high school came around I had filled out, and developed a reputation as soemone you really don't want to mess with. That said, my HS had security cameras, so if they tried that "well I saw you so..." bs I'd have told them pull the tapes or get ready for litigation. Zero tolerance is bs. Let kids defend themselves and drum out the constant problems. Ita not hard to tell the difference between a good kid forced to defend himself and a bad apple.
Sorry, back on topic.