Do you or don't you like smoking?

I personally don't like smoking. I don't smoke and it really annoys me when people smoke in public areas as if they are giving no regard to other people around. I probably bet they know the health hazards that it brings not only to them but to others who can inhale the smoke. I know that it seems to be a very hard habit to break but can't they just be considerate? Like smoke in areas where there's not a lot of people? There are some designated smoking areas yet a lot aren't following those. They just smoke whereever and whenever they want.

How about you? Are you annoyed by such actions? Or is it just tolerable?