I walked upstairs to bed and saw my watch winking shinily at me from a pile of junk in Rob's office. It was invisible from the step below and the step above, but it caught the light just right and I found it. Yes, we had already looked there.
So I have my ring, because I found it, and Rob has his ring, because I collected it from the jewellers where he took it to be mended.
I love, by the way, my caterers.