Go read about air pollution, you ass. The air you breathe is more poisonous than a cigarette, and by far a lot worse then 'second-hand' smoke.
Go read facts, my son, and you will find out there has never been, or never will be a death caused by second-hand smoke.
Second-hand smoke, such as it is ignorantly called, is actually quite harmless. When a smoke inhales the smoke from a cigarette, the liquid, and cells inside their lungs absorb all the posion.