My watch melted!
OK, not really, but one time I looked at my watch to see what time it was, and the glass just fell out, followed by the hands. I had had that watch for about thirty years, and up to this point it told the time well, but it eventually just disintegrated, for no apparent reason.
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One night I was out for a walk and came across an old, rotted hollow tree stump. I was reminded of a fairly obscure poem (this one) that I happened to know because I had been given it to read and analyze once, years before, in a college English class (but had never come across anywhere else). Phrases from the poem were running in my head for the rest of my walk. When I got back home, I immediately switched on the radio. It was tuned to BBC Radio 4, and someone was in the middle of reciting the very same poem! (I have never heard it being recited on the radio, or anywhere else, at any other time. When I switched the radio on I had no expectation of hearing poetry, let alone that poem.)
Some time after this incident, I told my father about it. He was a retired high school English teacher, and had for many years been chief examiner for our region of the GCSE English exam. Amongst other things, this involved him in occasional meetings with examiners from other regions about grading policies and the exam contents. He asked me who the author of the poem was. I told him. He said “Ah yes, I know him. He was a GCSE examiner too, and I sat next to him once at one of our meetings.”