Shocking footage of teen being bullied by classmates Teen Dies After Classroom 'Bullying Stunt' Goes Wrong As Teacher Looks On Cost boy His life In a cruel prank caught on camera, pupils wrapped Sergei Casper in cling film so he couldn't move, causing him to fall over and sA teenager has died after a prank by school bullies went wrong - in full view of the pupils' teacher.
Sergei Casper, 17, was the subject of a stunt that involved wrapping him in cling film so he couldn't move his arms and legs, and putting him feet-first into a toilet.
His classmates then took him back to his classroom in the Russian capital Moscow where his teacher was sitting.
But, still unable to move, Sergei lost his balance and fell towards the teacher's desk, hitting his throat on the table.
Having hit and crushed his oesophagus, he then lay on the floor suffocating as his classmates laughed in the background.
By the time they realised he was seriously injured, he was already in a critical condition and despite an ambulance being called, he later died.