Sorry but if I was a smoker and I knew I would be smoking around people with a family or personal history of cancer I would quickly put my cigarette away or not smoke at all. It’s called CARING about your fellow man, enough not to inflict extra risk on them.
I can’t really argue with that, if you know your smoking bothers someone and you choose to be considerate to their feelings by not smoking. But where I live in Washington State, they passed one of the most ridiculous smoking bans in the nation. No smoking in any bars (including cigar bars), and no smoking within 25 feet of any public building, literally forcing smokers into the street in many cases. So as a personal choice I can’t complain about not smoking—I don’t smoke myself. But I associate the anti-secondhand smoke arguments with the flourishing nanny/totalitarian state in the socialist hellhole of Washington.
Of course you would, all the while telling them the latest news you discovered how they could defy their inborn curse and then you’d be the first to carry their casket, merrily informing all in your midst how you had spent all your free time guiding the poor, stubborn thing as you cried yourself to sleep as she just couldn’t see the error of her wasteful ways...