A friend of mine is a teaching assistant in a local high school and she said you wouldn't believe the kids' behaviour now. Chairs being thrown, students "squaring up" to staff (16 year olds who aren't small), swearing and calling the teacher expletives etc.
The most shocking thing is she said every classroom there has a kind of panic button installed for the teacher to press if it starts getting serious and two MALE members of staff must be free at any given time to attend when needed... Like wtf? Full-time teacher/part-time bouncer it seems.