That's the bad design of the system, that a kid that predictably will ruin learning experience of all their classmates, has no place to go where they would caus

That's the bad design of the system, that a kid that predictably will ruin learning experience of all their classmates, has no place to go where they would cause least harm. The system simply denies existence of such kids, and pretends that teachers just need to work harder, or we need to throw more money on that kid, and then everything will magically be ok.