I had a schoolmate (I hesitate to say "friend") who had one of those psychosomatic "allergies" to cigarette smoke. At one point, in a lineup for a movie, there was a guy behind us who was smoking. My schoolmate started grousing quietly to us about how disgusting smoking was and how he was allergic and so on and so forth. Not loudly enough, note, for anybody but the two people standing next to him to hear. Meanwhile the smoker was having his own in-depth conversation with a couple of friends; he was obviously not paying attention to the guys in front of him.
Suddenly my schoolmate turned on the guy and in a loud, whiny voice shouted "DO YOU WANT ME TO PUKE ON YOU OR SOMETHING!?" He didn't even reference the cigarette or anything, just those words.
Now picture this situation from the other guy's perspective. You're standing in line for a movie talking to your friends and all of a sudden this crazy asshole shouts at you about puking on you. Is this going to induce you to put out your cigarette?