Thank you so much for getting back to me, Q. I spoke with him last night about the amount of lighters and the possibility of huffing butane. He sort of laughed at me and told me his friends don't do that kind of stuff and neither does he. He runs cross country and maintains above average grades. I told him I needed the reason he had so many lighters in his backpack then. He replied that they use them to throw on the ground and they explode. I think that is probably true but I'm still worried. Is there any test beyond visually checking him or smelling for the chemical odor? I know there are OTC drug tests now but wasn't sure about this one. I haven't received any information from his school about "huffing" but I know the neighboring town's Middle School is having a meeting on it tonight. Even though he's a good kid, he would have reasons to be stressed and want the escape. His father and I both started drinking very young. (addictive personality is in his jeans) I'd be willing to receive the kit to forward to his highschool nurse.