Eh I gotta agree at 25yo you have a choice not to live at home if the smoking bothers you that much. I moved out at 22 (18 if you count my years at college). Sure it's sometimes difficult dealing with CF and supporting yourself, but nobody said that life is easy, CF or otherwise. The bottom line is that it's their house and their bodies, and I think they are showing a modicum of respect by smoking outside. You need to decide how you truly feel and act accordingly, even if that means biting the bullet and moving out.
OK, I said it, go ahead and flame.
OK, I said it, go ahead and flame.