smoking parent in car?

[jack]

I am 15 and live with my parents. My dad is a nonsmoker, but my mom smokes about 35 cigerattes a day. She goes outside or to a shed to do it at home, but she sometimes does it in the car when she is driving me. She says that such a small amount of seconhand smoke won't hurt me, and since no one does it in the house, I am fine. I want her to stop, how do I deal with this

 

[Alex]

tell her there's no way a .22 caliber bullet could kill her because it's such a small amount of lead and powder, same concept. or if you don't think this would work tell her that it builds up and it will stay in your body forever and that secondhand smoke is 10 times worse than first hand because it is not filtered at all