I'm glad things were better today. There are some schools that do expect a teacher to make sure that all of their students get in the right car or on the right bus. Sometimes mistakes do happen. However, it can be done and done correctly. She should have, at least, made sure that none of her students were left before she returned to the classroom. It does sound, though, like his teacher was not the only one at fault, by far. Most school where I have worked have had duty teachers who were responsible for getting the students to the proper buses each afternoon. If a child missed his/her bus, the duty teachers would take the child to the school office and the parents would be contacted. It sounds like there was a breakdown on several fronts in your situation. If it happens again, I would conact your school board representative.