A relative teaches in a large public school district. This is exactly what he has been told. If a student becomes violent and starts smashing things, including computers, just let him. Make sure the other students get out of the room and wait until the destruction is done.
To date, he’s experienced it once. Except he picked the student up, carried him out into the hall, and THEN called for help. He was reprimanded, but he hasn’t had a repeat...
AND-—for the cherry on top of the sundae:
Taxpayers are paying for the replacement/repair of all that destruction.
Maybe charge the parents of the disruptive kid & it WILL end.