An aggressive student was kicked out of class by his fellow pupils after attacking their teacher in a row over headphones.
Video from inside the classroom showed the elderly man growing increasingly frustrated with the unruly lad, who refused to unplug his device.
Eventually the teacher snatches the headphones away from the boy, who then shouts “b*****d and starts throwing punches.
He strikes his teacher on the side of the head and pushes him back against the chalk board before pulling at his tie.
But fellow students quickly rise to defend their mentor, jumping up and surrounding the attacker.