I used to work as a nurse in a locked down child/adolescent psych facility (and NO, will NEVER do psych nursing again). Even a 5 year old with behavior issues can cause damage, serious and possibly permanent injury to an adult who isn't careful. When we would have to do a "take down", we would have just as many people for a child as an adolescent usually. While I worked there, I was bitten, scratched, stabbed in the thigh with a pencil, threatened with a knife a kid smuggled back from the kitchen and narrowly avoided being bashed in the head by a 3-hole puncher flung by a pissed off 10 year old. Pepper spray, taser, whatever the hell is required on someone that out of control and threatening receives my blessing. Just because you go into some form of public service work (i.e., police, health care, fire department, paramedic, etc) does not mean you are signing a consent to be a freaking pinata. Personally, I get tired of my "mature" adult patients thinking it is ok to beat the sh!t out of me if they want to; I sure as hell don't want to tolerate it from a rugrat ever again.