They used to put these children in special schools instead of integrating them.
Kid is throwing desks, attacking other children, spitting, biting, punching everybody. Kid goes into padded room. Yells, hollars, swears, kicks the walls. Kid starts crying, begging to be forgiven. Teacher talks to kid, when kid is settled down, and teacher feels he is OK, he comes back into classroom. Imagine a 250-300 lb grade schooler acting out this way. Happens every day in our public schools.