[Joe 6-pack]

"people are deathly allergic to cigarette smoke. Even one whiff of that stinking stuff can trigger an asthma attack which could be fatal."

Well, if a cigarette smoker presented an imminent threat of death, most state self defense laws would support using lethal force to stop him. Would you feel justified in shooting a cigarette smoker?

[EinNYC]

I’d rather dump a large bucket of ice cold water over their selfish head. The added benefit would be that it would put out the cigarette that is closing down my breathing.