For teachers, there is nothing more sacred than the space of a classroom. While the sanctuary of rooms are sometimes shattered by violence, it remains thankfully rare. That makes the video this week particularly disturbing as physics teacher at John F. Kennedy High School in Paterson, New Jersey is attacked by one of his students. The other students do not come to the aid of the 62-year-old physics teacher as he is thrown to the ground by a sixteen-year-old student, though one student eventually comes over to tell the attacker to break off the attack. The teacher had taken the teenager’s cellphone.