Of course, it depends on the age of the kids @KNOWITALL. A high school or Jr high kid they’d probably call the police.
There are legal ways to restrain an elementary school child who is a danger to themselves, etc.
He’s not locked in alone. There is a teacher in there with him, trying to help him calm down.
And they have to lock them in sometimes or they’ll run, and then the school is in a world of lawsuits if something happens to him if he leaves the grounds and gets hurt.
At the elementary level the students have to leave their cell phones in their back packs, and the back packs are left in the class room. They wouldn’t have them with them in the first place.
Allowing the kid to call the parents when he is in a rage is a very bad idea. There is no telling what they ‘d say. Besides, if a kid is that bad, it usually due to bad parenting. I have had kids lie and say I did things that I didn’t do.
The parents DO get called when a kid gets in trouble though.
It’s just a place for him to calm down in so the rest of the students can get back to work.