There was a rather touching story back in December, in a local magazine called The Register, of someone losing a ring.
It turned up a while later on the doorstep, and the theory there is that it was spotted somewhere in the garden and left there as a "gift" by a particular pair of crows that know they can get a square meal at that house.
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My workshop elves do more than pinch your last 12BA X 1/4" screw (do they exist, that tiny?). They have the Power of Induced Invisibility.
Using a chain block to manipulate my steam-wagon boiler, was hampered by having to avoid the chains clattering and banging against the boiler. I recalled some hoists have a chain-bag suspended below them, then that there was red polythene bucket outside the workshop, now rendered useless for water by a split. So I brought it in to become chain-bucket, and put it down to take a suitable cord from a hook on the wall.
In those 30 seconds or so… how the heck do you lose sight of a large red plastic bucket?
It re-appeared after a while, and I am sure I had not put it behind the band-saw.
[How do I know there is a hole in my bucket… dear LBSC, dear LBSC…
In that cold snap I used the bucket to rescue a large mass of frog-spawn ice-lolly from the pond, in pond water, and placed it in the front porch so still very cold but out of the worst frost. Next day, I noticed the tide had gone out, luckily Neap rather than Spring… ]