Can I just say that today 10 minutes before lunch a boy asked if he could visit the toilet and thinking back to the posts on this thread I said yes and to be quick. A colleague brought him back to class as he was running down the corridor with another child who had been let out from another class, so much for giving him the benefit of the doubt. I decided that i would return to my old policy of no toilet during class
A girl asked if she could nip to the loo as she came in from lunch, I explained that she should have gone at lunch and the answer was no. She did ask again later on and said she was really desperate,but i stuck to my guns and said no, she hung on until the end of the day
Sorry if people disagree with my views on the subject, but not letting them out of class is what seems to work for me