Know exactly what you mean
Your mom sounds like my mom. I remember driving in the car as a kid with my shirt pulled over my nose while mom puffed away in the car. And she's still puffing away, between the hits of oxygen she needs for her emphysema and congestive heart failure. My Dad smoked, too, and didnt quit until he became a quad from the MS. Funny how that works.
Good for you for quitting, Peter! I never smoked, thanks to my parents. Call it aversion therapy. In college I would occassionally light one up to piss off my roommate, who had allergies worse than mine. Ahh, good times.