I thought the headline a bit intense and after seeing further footage of the girl's behavior I don't know what else could have been done. The child was being extremely belligerant and was uncontrolable. If the parent couldn't come to pick up the child what else was the school to do? I doubt they have a padded "time out" cell (might be a good idea though) and they aren't allowed to physically intervene. I imagine that the child's problem lies somewhere in the home, it should be looked into.
The Dude abides.