A man pretending to be an Ofsted inspector called up a school and sacked the Deputy Head.
The prankster, who goes by the name Uncle Rafool and masks his real voice with a thick west-African accent, telephoned the office of Whitefield School in north London and said: "You have been fired. Pack up your things and leave the office."
Uncle Rafool claimed he had an appointment to inspect the secondary school and when the baffled Deputy Head, Marcus Villiers, asked whether the call was a prank, the joker replied: "I will cello-tape your bum cheeks together".
An audio recording of the telephone call has been uploaded to YouTube and it has since been revealed that Uncle Rafool has called nearly 150 schools across the country on request of pupils who want to see their teachers humiliated.