You are at your desk working on the next great American novel and your glasses fall off of your face and when you pick them up, a screw has fallen out.You are in your car, when your passenger drops their wedding ring into a toaster (why they are holding a toaster does not matter, but they are).Or, you are sitting at home watching TV with your favorite four-legged friend upon your lap when the battery dies in the remote. You can reach new batteries without disturbing your pet but there is a screw holding the battery cover in place.