I think it's important for the sexes to learn to co-exist. If anything the co-ed schools do not create bad behaviour rather, they prevent it. I go to a Co-ed school myself, but the boy's school that is fairly close to where I live has the worst reputation for bullying, vandalisation, and general bad behaviour in the area. So the statistics would seem to suggest that single-sex schools are the worst idea ever and need to be abolished immediatly. As for my own views, I agree they're a stupid idea. Not least because it reduces any interaction with the oposite sex that I have meaning I would never have met my best friend Sophie. This is obviously bad. Personally I can't see any up-sides to single -sex schools.