A whopping 90 per cent of the 800 staff that took part in the survey said they had been forced to deal with at least one case of a challenging or disruptive pupil during the past year.
Some 62 per cent of those surveyed said there are more children with problems than two years ago, and 56 per cent said there are more than five years ago.
Pupils have even cyber-bullied their teachers, attacking them on social media sites such as Twitter.