Hello! So I read a thread from several years ago where several people had mentioned putting ash (like the stuff you clean out of your home's wood burning fireplace) in the chicken coop and/or run to dust bathe in. Has anyone else heard of that or done it? My immediate thought is the fine dust that is in it causing respiratory problems. I'm asking because we have 3 wood burning fireplaces, so we have a TON of ash on a regular basis and if it makes the girls (and boys) happy I'd give it to them! Thoughts?