In Chicago there are signs is front of most public establishments that read 'No Smoking within 25 feet of Entrance.' No one obeys it, but at least it's the law. I think many smokers are resentful that people are so against their habit that it is a conscious decision to rebel. On the other hand... When I still smoked cigs I'd often light up with no one around, and sit on an outdoor bench or curb to people watch. Often someone would come by to sit next to me, then complain about my smoking. I'd always reply that you saw me smoking here and chose to come over and put yourself in this situation. People are funny...