Poor smokers

They are under bombardment. Increasing price/tax, uglier packaging, more non-smoking areas, etc. However, without similar efforts to encourage them to quit smoking, they end up smoking more in new places.

I noticed more of them are smoking while ... walking. By the logic why many places disallow smoking, when walking behind someone smoking along a narrow walkway, especially one with shelter, it is difficult to escape from the second hand smokes.

Recently, there is also second smokes in my bedroom late at night. Very likely it is from some smoker neighbor one or two floors down who smoke heavily.

Can we enforce smoker to use a filter, both for the exhale and the cigarette? Or wear a mask?

I most dislike are those who holds a lighted cigarette but not smoking it. This is pure pollution to environment, burning of money, and irritation to non-smokers.