i became friends with an autism advocate who has many stories to tell, her own son being one of them! something about unsupervised playground time and him getting a haircut by another older student who sat on top of him while cutting his hair, when questioned the staff etc could offer nothing. the parents had to investigate themselves and then the school offered no apology and no reprimands to the child who did the cutting, or to the staff who were supposed to be supervising. that went all the way up the ladder to the superintendent and that AP and then later principal (after another similar incident) was replaced.
i blame this post on the coffee. i've had too much.
have a terrific day

LOL you can never have too much coffee

Sorry I should have been more clear. By unsupervised recess I meant that the teacher does not come out with them - not that there's no supervision. They have outside supervision staff for all the breaks and a, um, "unsolicited haircut" would never go unnoticed. They (there are at least 3 plus the principal, and there are only 325 kids) scan and watch for incidents, fights, injuries, etc.
What I was worried about was that my son would slip away unnoticed, which couldn't happen now because a) now he wouldn't leave and b) they all know him. Back in KG, though, he was a serious flight risk and not all the sups knew him. It just made me nervous.