Our Classic Framed Diamond, Beware Crazy Dogs Live Here Sign can be attached to the door, wall or window of your home or business. The sign text and design work is laser engraved into sturdy plastic. Each sign comes with an adhesive foam backing, allowing them to be attached to any flat surface. Comes in multiple colors. Our dog and pet sign is great for your home, office or shop. Easily attach to any wall or door or flat surface. Fun sign to let guests and visitors know that you have crazy dogs in your home (hopefully friendly).