This is the hilarious moment a crane operator sends a bundle of roofing sheets cascading off the top of a building in front of a crowd of bemused students.
The footage was recorded last month by one of the pupils at the school in Staroshcherbinovskaya, Russia.
In the video, a man, who appears to be wearing blue trousers and a grey vest top, can be seen straddling the apex of a roof.
He has both hands on the load being manoeuvred by the crane operator and tries to help guide it into position.
The builders work together to lower the bundle closer toward the roof as the cameraman quickly pans around to show a crowd of students sitting out on the sports court watching on.
But suddenly there is a large screeching sound as one of the huge roofing sheets slides out of the bundle and falls to the ground.
The footage was recorded last month by one of the pupils at the school in Staroshcherbinovskaya, Russia, as a builder straddles the apex of the roof to guide the load into place
It then causes a cascading effect as a series of others are sent clattering after it.
The students can be heard laughing and jeering at the hapless contractors.
The man at the top of the roof has no choice but to watch on in despair as he is now helpless to intervene.
The sheets finally finish falling with just one left hanging from the crane.
Suddenly there is a large screeching sound as one of the huge roofing sheets slides out of the bundle before falling to the ground. It then causes a cascading effect as a series of others are sent clattering after it
One of the teachers can then be heard trying to round up her students, which is where the video ends.
Speaking after filming, the cameraman said: ‘While repairing the roof of a school, the crane operator placed the roofing sheets down on the wrong angle and they slid to the ground.
‘Luckily the school children were gathered on the opposite side of the courtyard and no one was harmed.’
