A man is smoking a cigarette and blowing smoke rings into the air. His girlfriend becomes irritated with the smoke and says, "Can't you see the warning on the cigarette pack? Smoking is hazardous to your health!" to which the man replies, "I am a programmer. We don't worry about warnings; we only worry about errors."

That's why you should focus on driving your car instead of focusing on your cigarettes. And of course, you have to be patient, don't overtake other drivers on narrow roads if you don't want to have an accident and hurt others.