I once found a live goldfish flapping around in the fireplace of my bedsit. It was in the summer of 1962, and I had put twists of paper in the grate to catch any small soot falls that might come down the chimney. I was woken up just after dawn by the sound of newspaper sort of crackling from the direction of the fireplace. When I investigated there was a large rather sooty goldfish flapping around on top of the newspaper! I scooped it up and plonked it in the sink and ran some water for it. Understandably I just couldn't figure out how it had got there. Later after getting dressed I went round to the local pet shop for a bowl to put it in, and told the guy behind the counter what had happened. He reckoned that the probable explanation was that a heron had caught it in a local garden pond, and decided to carry it to the top of my chimney stack to eat. He said that they like to swallow fish head-first, and that it had probably dropped it as it was juggling it about in it's beak. I bought some fish food and got a bit of advice on goldfish keeping, and "Sooty" survived for a couple of years after his(her?) ordeal :yes::yes:

Next revelation will follow in due course