No doubt most readers will be unaware of the fact that nicotine is quite a nice drug to use when indulging in certain other illegal drugs. That's why you see people off their tits in clubs on E or coke smoking away even when you know they're not really smokers. The stimulant, nicotine, tops up the effects of these other drugs, sustaining or boosting the high.

It will be interesting to see if people take to sucking on a nicotine replacement lozenge or chewing gum instead. Maybe such oral delivery mechanisms for your chosen poison will become even more acceptable. Perhaps even make people think differently about "popping a pill" of something else.