I used to be appalled by smokers and couldn't figure out why they would want to subject themselves to something like that. It's such a nasty habit, and it was beyond me that they would do it. Lately I've been seeing it from another angle. I've tried to observe them from a wider perspective and I have come to feel sorrow for them.
If you think about it, smokers have become addicted to a drug that harms their health and turns them into slaves. Smokers have to take their breaks during work and often have to go to designated areas just to feed their addiction. They often end up coughing a lot and their voices become rough, their teeth turn yellow and their breath is bad. If they ever decide to quit, they have to overcome the major obstacle of chemical addiction. They consider it their freedom and something they want to do just because, but how often is their freedom to live driven by their need to go smoke?
Addictions overall are a bad thing, but smoking is one of the few that will actually harm the health of others just by being near the smoker.