My DDH mislaid his fold up travel alarm clock in a B & B last year. We searched and searched, under the bed, behind the bed (he has heard something fall off the bedside cabinet in the night!) We mentioned it at breakfast to the owner who said that he would go and search while we finished breakfast. We finished breakfast and my DDH went to help followed by the wife of the owner of the b & b. I sat in the lobby waiting and decided to go up to bring down the cases. When I entered the room it looked like a burglary. The mattresses were up against the wall. The lady was stripping and shaking the duvet covers. every item of furniture had been moved away from the wall, rugs pulled up. It was a case of if it was not nailed down - move it. The upshot was that it couldn't be found. It had disappeared, vanished!!! They promised to forward it if found.
We arrived home and I sneaked up into the bedroom to find the 'lost ' object sitting happily on OUR bedside cabinet. Say no more.
A friend lost her late mother's wedding ring in the bathroom of a b&b in Glasgow, it slipped off her finger and rolled between the floorboards to disappear forever it seemed. The land lady had to call out a carpenter to lift the floor boards to retrieve it. I don't know if she charged my friend for the carpenter's fee.