Hey Junkyard. I thought about you and your son and this situation as I fell asleep last night. I have a 9 yeard old son, so this stuck in my mind I guess. It sounds like your approaching this subject good with your son. A couple areas that feel compelled to speak up on...
Like I said, you are his hero - whether he says/shows it. Your example is very important. Be careful on how you portray drug-use to him. When he's hearing how evil it is along with all the other drugs they categorize and teach the BS with, he may get confused. I also don't agree that he needs to research on his own yet, or be an 'inbetween' with his teacher and you as some have suggested. That's ridiculous. He needs to be considering other things at that age. I'm sure you know this...But he's reading cannabis mags in your room. And while I think it's great you don't smoke in front of him, he knows. Or at least he'll figure it out soon enough. Sorry...my rant. I just care a lot about kids. I grew up in ghettos with addicted parents and felt that pain. So I'm sensitive to this....
Take care,
Hope I don't get flamed too much.