I am wondering now if I've ever done that (sanctimonious lecturing) Thinking... You know, I probably have, but I'm pretty sure it was during discussions where the smoker was talking about quitting. But I will pay attention from now on, because it sounds completely obnoxious. Goodness knows that my life isn't free from unhealthy habits.
I currently live in an apartment, and it doesn't seem particularly well-made but I've never noticed cigarette smoke, ever. Now marijuana smoke in the breezeway, sure but never cigarette smoke inside. I can't imagine how cigarette smoke could get through walls unless there was a construction problem OR some kind of ventilation system where the air got swapped around. If that were the case, I think I would probably just move, but I'm trying to imagine being a person who rents with the intention of staying long term. (Whenever I rent, it's a transitional situation.) I guess if you plan to be there for a long time, you probably have more of a territorial attitude. ?