The Knock at the Door

Neighbour's dob is wireless, and for the last few days, it just keeps going. Bob has been up and down like yo, answering the door to find nobody is there. And now he doesn't understand them. His son in law suggested that it might be his remote contt v remord setting off his door bell. It wasn't. Our egg must be the culprit. Whenever we played with it, we were making him get up to answer the door. Being a bungalow, and our bedroomis quite close to his front door, closer than if we were two story.