I think this thread is really interesting, I have never come across an issue such as this before in schools, in fact I'd never even thought about it. In my school, if someone asks, they can go, even if it is straight after a break (however in this case they usually will get the rant about going at breaktimes). Nobody vandalises the loos but there are horrendous queues at the beginning of breaks and lunch (just about managable though). I find it bizarre that in some schools the toilets actually have to be locked! I've never even heard of toilet passes. I thought the school was quite strict but I think the students are generally sensible and trustworthy enough for this sort of thing not to be an issue. Perhaps it has something to do with it being an all girls' school? Then again maybe not. Students are allowed to drink in lessons and in many sixth form classes, there is a class rota for who should bring cake for the class to eat in the lesson (the teachers are on the rota too)! Reading these posts, it probably sounds like I'm making it up, but I was genuinely shocked when I saw this thread. Also, at my school, teachers often leave classes unattended, sometimes to go to toilet, or to do photocopying etc. This is all years, not just sixth form. Is this not common practise? Is it not allowed? Obviously they are only left unsupervised when they have work to be getting on with. Sorry, this post is a little incomprehensible, I was having a 'stream of consciousness' moment.