Just becsuse our children see things happen, they don't have to think it's OK. This is an opportunity for you imprint your views on him in two ways. The obvious is your opposition to smoking. The second is how you handle it. Although you spoke to the neighbor, give it another shot. Be calm, perhaps some sort of olive branch could be offered and have another go at it.
Depending on where you live, the cops may or may not be able to help. If you go this route, contact the narcotics unit directly. Oh, and if he has half a brain, he will know where the heat came from. Good, luck and, unfortunately, it could be worse.
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