Schools, on the other hand, take a more utilitarian approach and use it as a way to manage pupils' behaviour.
"Teachers find it difficult to manage pupils in class," says the school's head teacher, Rejoice William Jada, who registered fewer than 1,300 students in 2005.
As it is the job of the SEN coordinator (Senco) to manage staff, pupils, parents and external agents in providing the most appropriate education for these pupils, it is the Sencos who encounter the daily concerns voiced by their colleagues.
The money gap explains some of this: with fewer resources to manage problematic pupils, charters can't afford to be more helpful or more forgiving.
If this could be managed without pupils suffering, it would be of less concern, but 77% of those surveyed said financial pressures had a detrimental effect on education provision.
Half of those polled said appropriate training was available to teachers who struggled to manage difficult pupils.
Imagine her, or any pupil, managing to do this through our state school system.
If those five decent grades included maths and English, however, only 44% of pupils managed to do that well.
But in Peterborough just 39% of pupils managed the same standard, closely followed by Bedford with 42%.
Whereas at Winchester College, Westminster and St Paul's, 183 pupils managed the feat yet won 198 places - almost three times as many.
