No smoking

I am 25 years old and have never smoked. I hate cigarettes, the smoke makes my head ache. When I met anybody, I will note if he smokes or not. If they are smoking, I don't think it is good for him. Because somebody shouldn't poison himself.
In my country -Turkey - smoking in closed spaces was banned by law by the government. The government's slogan is "smokeless air zone." Although the ban is instituted, somebody smokes there anyways. In my dormitory, they have smoked in front of my room for 2 years and their smoke was going into my room. I was angry about this and I warned the smokers again and again; but they continued anyways. Finally, I went mad and left my room. I was very angry and screamed down the hallway. Everyone looked me and we argued some. I wouldn't want to be like them. Nevertheless, I am happy now because they understood me at last and there isn't smoke in my room.