In one of the pubs that "Travelling Folk" use (The Windmill at Weald), a previous landlord was an ardent non-smoker, he had a notice on the wall that was along the lines of:

The problem with people smoking is that their habit has a waste product which gets into my lungs, hair, and clothes even though I don't partake of it. I have a habit too - beer drinking. This also has a waste product which I release in more private surroundings. How would you smokers like it, if when I had a pint, I pissed all over your hair and clothes - let alone in your noses and throats !