Mice are rather partial to chocolate, and apparently not at all interested in cheese. I have a cage full of them, descendants of a few that I caught several years ago and never got around to relocating when the weather improved. They are cool little beasties, some are quite tame and they are easy to keep (if a little smelly). We later acquired a cat from a local rescue centre, and we haven't seen any trace in the house of "wild" mice since.