Hey, I'm just wondering if it's okay to give my chinnie boys some outside time. I have a SuperPet cage (I know, I know, I'm getting a new one this summer...probably a Ferret Nation...) and the wire top can come off. Would it be okay to put this out on the grass and let them have a little outside time in it? The lawn is not too lush and is not ever fertilized or sprayed with pesticides. Also, they are on acidophilus, if that helps.