I remember, the last time I flew, which was almost 10 years ago, I was at Pearson and was desperately asking around for a smoking room and they still had one there. Well this was several hours into withdrawal for me, and the room did smell pretty disgusting, like old stale cigars, which I don't care for, but that was pretty insignificant when you are wandering around in the desert for a long time and finally find an oasis. So once I was finished my cigarette, I staggered out of the place, and my boss who I was travelling with asked me how I felt. "I'm still just as dizzy, but it's a good kind of dizzy now."
I read somewhere not long ago that second hand smoke isn't anywhere as dangerous as people think, and in fact has been shown to be less harmful than drinking a glass of milk a day. Whether that's true or not, what is very likely to be true is that the people who conduct these studies are probably very biased against smoking, which makes for bad science.
In any case, we definitely do need to be more accommodating toward the needs of smokers. Having smoking rooms in airports which are ventilated properly and pose no risk to others would be the humane thing to do.
I heard people say that they have been given a hard time when they VAPE in airports. That is ridiculous of course but this is what happens when ignorance prevails. We owe it to ourselves to be aggressive with our
vaping and not pretend that it is a bad thing, because when we do that others will assume that there are possible issues with it as well.
There are no logics for that. 
