Pretty sure I can't be the only one around here who's noticed that there's a portal to a different dimension in the vicinity of every watchmaking bench.
No matter what flooring you have, or how clearly you see a dropped part falling, sometimes they simply disappear, only to reappear hours, days, or even months later in plain sight where you couldn't possibly have failed to see them.
I'm fairly convinced that this is a manifestation of quantum mechanics operating on a macroscopic scale. We're told that the only reason we don't normally see quantum effects is that, statistically, the chance of things like spontaneously disappearing matter becomes vanishingly small at anything above subatomic scales. My hunch is that they've got the maths wrong and, although very unusual, it does happen. And watchmakers benches, surrounded by lots of things that are pretty small by "material world" standards, are the ideal place for that to happen.
But, on Saturday, it happend with a vengeance in my workshop. My partner was also down there, doing some silversmithing, and I stopped to put the kettle on to make us a coffee. While the kettle boiled I returned to my bench and found this box of parts right in the middle of my bench, sitting on top of the watch I was working on (a nice 9kt J W Benson writ watch with Cyma movement).
What makes this one really odd is that I've never seen it before in my life. It's arrived through the lost-parts dimension from someone else's bench!