With the title I thought you meant machines that come alive when you are not using them. Mine do. My pig has been found on the floor a few times when I go to press seams. I have 3 dogs. Two are puppies and they think it is a game to go asleep on the pedal when I move my foot or just keep jumping on it while they chase each other. If you miss it you go back it must make a noise. This is my secret life of my sewing machines. ( no elves)