The only time I've ever got totally p*ssed of with a smoker was some time ago when there were smoking and non smoking compartments on trains.This particular smoker lit up in a non smoking compartment without even asking and carried on despite being told it was a nonsmokers section(as if he couldn't see the no smoking graphical sign

) he proceeded to continue to smoke.There were plenty of smokers compartments for him to choose and he could have moved.In the end me and the other occupants were ready to complain to the guard when he left the train.Arrogant G*t!!!
However that's about the only time I can recall ever getting so irate with a smoker(apart from when my other half last decided to try to give up-I was ready to leave home at one point).