I would be extremely cautious with this. If you make a threat you have to be ready to follow through or you will lose tons of credibility. And if he hates being at class so much he is ready to hurt himself to get out, do you really think embarrassing him and making him a subject of teasing from other kids for years to come (and kids do not forget, when I was at High School, there was a guy called Puke by everyone because he had been so scared on his first day of Kindergarten that he puked in class...) Because lets face it, helmet will not make him stay in class. Even if teacher allows him hit his head in peace with helmet, he will find another way to get himself out from there. He can bite himself, throw a chair, hit the kid next to him or scream from the top of his lunges. He will get himself to principal's office if he wants to. By the way I have embarrassed my kid in front his peers to make him stay at school. Really didn't work. I would love to take those times back.
Your problem is not that he hits his head to get out of class. It is that he hates being in class so much. 6-year-olds don't cut class to get to have a cig in restroom, or to appear cool to their friends, or because they are lazy. 16 would be a different matter, but if 6-year-old hates school so much that he does anything to get away from it, problem has to be solved in some other way than punishing the child (again, been there, done every possible mistake on that, not feeling too proud of myself nowadays because of that.)
I agree with you. I *know* that I shouldn't make threats that I don't follow through with, and I really wouldn't follow through with it. I can't imagine, with his self esteem issues, what sending him to school in a helmet would do to him. Nothing good would come from it, but I was (am) frustrated and out of ideas.
I did email the school district, basically saying that his current situation is not working and asking if there are any other programs, regardless of a diagnosis, that would help me... like a small class size, social skills traning, etc. I know there aren't in HIS school, but that there are in other schools. His current school has tried to discourage that though, for some reason. I didn't email his school directly though, but the special services department of the whole district. I know they probably go by what their school psychologist says, who has observed difficult child now twice. I haven't heard back from her after the second evaluation, but her first one didn't say anything about autism spectrum. It is only the private psychiatric's who have mentioned it.