8 years old? disabled/unable to understand commands from cop/teacher?
i'm all for busting cops when they abuse power. But as a former teacher, I can tell ya... When a fully grown student in 3rd or 4th grade (maybe even with a fail/retention, making them a year older) decides to attack a skinny 110 pound hottie 22-year old teacher, it can get ugly fast. Cuffs protect the kid and the teacher. When a kid punches teacher, or smaller kids, often the 'restraint' of a kid can hurt the kid way worse than handcuffs would.
plus, as a parent, if my kid is kicking the shit out of others/teacher, then his ass deserves a nice round in handcuffs to wake him the #$@^*& up and prepare him for the beating I'm sure to deliver once he gets home haha.