Those are all good ideas for preventing it, but what if you found out they did it anyway?
My son told me about a disturbing situation that happened on the bus today, where a 7th grade boy with Asperger's was teased when he had a meltdown over a seating issue. I know these kids, and they are really pretty good kids with reasonable parents. It seems like there was a little mob mentality going on.
It got me wondering what would be an appropriate way to handle incidents like this. They aren't really mean kids, they're just 7th grade boys who are being obnoxious. But I think this boy gets picked on quite a bit, and I know his parents would appreciate some ideas for how to stop it.