It's not as if cigarettes cause a 5 meter radius circle of smoke around the smoker. You'll be lucky if you even reach a metre. In fact, I tend to blow my smoke upwatrds so as not to offend anyone. Is it so much effort to move out of your way just slightly so to avoid the smoke? I notice that most people would walk the other side of a crowded street to avoid a Big Issue salesman, but when it comes to smoking WE are the ones that have to be moved. It's not right man
As NotAProgHead mentioned, how do these people cope with some of the bigger pollution sources such as power stations and deisel vehicles. They must cry themselves to sleep.
By the way, I'm referring to passionate anti-smokers, not just people that prefer not to smoke. Please don't take it the wrong way