I quit smoking for good 2 days before my heart attack, 1 year ago last October. But, that was my decision as an adult. I never smoked in my house, around my grandchildren, or anyone else who objected. As far as second hand smoke, I think the verdict is still out as to how dangerous it is. My chickens do not smoke, so I don't know if it would harm them or not. They don't drink either. LOL