lol. if a friend of yours is smoking in your face, he is a bad friend. if i am smoking with a friend, i would always keep my face away while blowing out. i usually blow the smoke up to drive the smoke as much away as possible from me or my friend. i do smoke in the house. but i stay in the basement and the exhaust is always on. as for your second point, it is hilarious. nicotine is not harmful. it is like caffeine. it boosts energy in your body. it's not nicotine in a ciggie that kills you, it is the tar generated from the burning tobacco. this tar gets collected in your lungs and that kills you. smoke from automobiles has carbon monoxide or similar harmful pollutants. i can safely say that a car's smoke is much much harmful than the smoke coming out from a cigarette.