I won't claim to know anything about FAS but you are sitting on a powder keg--and if isn't you who sets it off it could be an innocent child or teacher at school. You need to report this to the authorities ASAP--before you are having to answer to a lot of other people. If the parents at Columbine or any of those other school shootings had done something radical with their children a lot of lives could have been saved. It might be hard to do, but you could save a lot of lives--perhaps even your stepson's. I'll keep you in my prayers.