I hope my story gives you some ammunition against the "I have a right to smoke" smokers. When I first joined a corporation as middle management, smokers so polluted the air in some of our meetings, they had to call a break so they could clear the air so we could see the slide presentation and they could go on with the meeting.
I am the only non smoker in my former family. Former family? My little brother died of smoking (cancer). My father died of smoking (cancer). My mom died of smoking (my father's second hand smoke). My grand parents died of smoking (cancer).
Growing up, I always had sinus problems. It wasn't until I moved away to go to college that I learned that I was allergic to cigarette smoke. It only takes 3 or 4 minutes exposure to smoke to block my sinuses for hours or days.
My father and brother would smoke at the table after they finished eating. If the smoke blew our way and we waived our hand to blow it away, my dad would get really mad. I finally told him, "You like to smoke?" Yes. "Smoking gives you pleasure and makes you feel good, right?" Yes. "The smoke is the residue of your pleasure and when you smoke, I have to breathe it and it gets all over my hair and clothes and food. Well, I like 7-Up. It gives me pleasure and makes me feel good. Urine is the residue of my pleasure when I drink 7-Up. Since your smoke lands all over my hair and clothes and food when you smoke, how about my standing on this chair and I'll piss all over your hair and clothes and food so you can enjoy the residue of my pleasure like I enjoy the residue of your pleasure?"
My brother put out his cigarette and LOL. My dad did not put his out, but from then on he at least blew his cigarette smoke over his head and moved his ashtray so the smoke didn't blow towards one of us. If we were outside, he would move from up wind to down wind. He only stopped smoking when he was 2 or 3 weeks from dieing when he was too weak to lift a cigarette or light it. He never asked me to light a cigarette for him, although he did ask my little brother.
Just a thought/day-dream . . . what if you went over to the soda fountain and got a coffee cup and put some lemonade in it, just a half an inch in the bottom, and pretended you had just come back from the bathroom. If you showed it to the smoker, If they were still smoking, and say, "residue of my pleasure, wanna share?" ;-)
Have a good day. Good luck to you and yours.