I've been told that off a certain kind of mushrooms, if you smoke them; you can go blind if you get the smoke in your eye(s). I've never researched this as I don't really care, so their could be very little to no truth in that what-so-ever. I've also been told that you can only smoke a few specific kinds of mushrooms as the flame can destroy the psycobin in them. Eaither way, I'de just eat them.