FACT: Kids breathe about 3x faster than adults, so if you smoke a cigarette in your car with your kids they are breathing 3 cigarettes worth of smoke!
So you still think you're not hurting them? Even with windows rolled down, the smoke flows right back in the rear window..I remember being in the car with my parents smoking, and it was very foul,especially when they flick the butt out the window and it flies back in, landing sometimes in one of our laps, or even worse -burning my hair. By the way I am a smoker, but I only smoke outside because I am not a moron. It's indisputable that a child should not be second-hand SMOKING! Don't be selfish, when you light up, think about the people around you who are not making the choice to be poisoned!