Strange kitchen occurance

My wife got a new TV to watch in the kitchen. Its one of those very small, very light, digitiles. It had to be light because it sits on a mantle over a brick fireplace. It is located on the extreme right side of the mantle. Probably 18 inches to 2 foot from the end of the mantle is a doorway to the pantry. The electrical cord on the TV is very generous easily reaching the floor where the electrical inlet is, with extra to spare. The wife experienced the following event. I was working outside and only entered after the fact. She said she was watching Dr. Phil and the set went off. The station she was watching is famous for blackouts so she tried to switch to a different channel. That didn't work either. So then she noticed the little red light on the TV front wasn't lit. The overhead kitchen light and the over the sink light were on so she knew that no fuse had blown. So, of course, she thought the set had blown out. About this time I came in; "The TV has quit" greeted me. I got the story. Trying the TV with the remote resulted in nothing. Then I noticed the TV plug was laying in the floor in front of the pantry door. This you have to think about. A loose plug can fall out of a socket. But wouldn't it lie there in front of the socket? This plug was a good 2 feet, probably more, from where it was plugged in. I plugged the set back in and it was a good snug fit, by the way, and the set came back on. So, how did the plug come out of the socket and end up well over two foot away? No one had used the pantry door. Though there was extra wire on the TV cord, it was placed beside the chimney, out of the way. The kitchen table sits too close to the fireplace for anyone to move between it. If someone had, my wife would certainly have noticed. I have two dogs but they were both napping on the far side of the kitchen; besides had one of them been responsible the noise and confusion that would have evoked would have settled the matter. So, how did that plug get ourt of the socket and over two feet away? Old houses can cause odd delimmas. Any suggestions, out there?