You can be offended and sprinkled with saliva, but I am in favor of as much as possible violating the rights of smokers. In large cities, the air is not very clean. It is impossible to normally stand at the stops - there is always a unique who believes that cigarettes speed up the approach of transport. In the transitions, in front of the doors to the store and any other public institution, in all the narrow places must be cigarette smoke. If you do not respect non-smokers, do not feel offended that your rights are violated.