my take is no school ca be rated in such incident as good or bad... There are always some bad or misbehaving or difficult student in all schools. School is there to learn not just education as parents , friends we have to play our role responsibly. Yes we can rate a school good or bad 'maybe' on the basis of different subjects available, games, infra, hygiene, security,  etc etc.. All schools have had will have few incident here and thr of misbehaving students...Which is ok as thats what is also to be learnt...thats why they are alled student, child etc etc..