i've not had the experience perhaps of teaching so many dyslexic children to be able to comment on this, but certainly when i was making the videotape at brickwall school  and i asked the headmaster about that and he pointed to the fact that they certainly have a very wide intake, a complete social mix, and professor miles at bangor university says that in his experience of dealing with dyslexic children they come from all walks of life, and it's really quite inaccurate — i suppose there's a sense in which, if we've got to use these phrases, that middle class people have always been very concerned about the education of their children and so they may be the parents who will ask questions about their children's lack of development, but i think it's only, you know, more significant in middle class terms because of that.