I would like to make a compost pile in my yard. I'm not interested in buying a compost bin nor building a compost bin. I would like to pile my compost in a spot in my backyard behind my shed. My only concern is if my pile of decomposing material attract rodents (mice or rats). Has anyone had a problem with rodents in the compost pile? I only plant to add soil, hay, newspaper, yard waste (plants and flowers), coffee grinds, etc. No meat scraps or anything of that nature will be added to my pile.