Fair enough, I misunderstood your point. It's so strange to me that teachers are having to deal with any of these behavioral issues. I seem to recall it being the domain of Assistant Principals and what we called "resource officers". Any disruption more than a childish comment meant a trip to the principals office escorted by an officer. That was it. Teaching could continue.
The issue is you can no longer physically remove a child. So getting them there is the problem if they are not going willingly and if they are a big enough problem they need to be removed it probably means they aren’t doing anything willingly.
