Smoking: Yay or nay???

I smoke and am Trying to stop. I think people have 2 feet, they can move away from the smoke if they like, otherwise they can bear it for 2 sceonds. You're not gonna get second hand smoke damage from 3 second of being around smokers. Think of this , in my grandma and mothers day(25-30 yrs. ago) they could smoke in grocery stores, offices, elevators. Count your blessings now.