If you've ever seen a mouse hiding in a hole in the wall, you know how frustrating it can be. Mice are small and quick, and they can be hard to catch. But don't worry, there are a few things you can do to get rid of the mouse and keep it from coming back. Mice are prey animals, and they instinctively hide from predators. Holes in walls provide a safe place for mice to hide from cats, dogs, and other animals that might want to eat them. A Mouse Hiding Sticker.