we had a talk about this, and while it's not my preferred approach, i wouldn't fight it, either.
something has to give. it's not fair that i'm dealing with smoke from upstairs, even if it's only a few months a year. it gets better in the summer when they turn the a/c on, so maybe there could be regulations involving air filtration systems....
http://www.ctvnews.ca/health/health-canada-proposing-smoking-ban-in-apartments-raising-legal-age-to-21-1.3301124