I remember reading a story in a magazine - I think it might have been Readers Digest. It was written in a “it happened to me” way rather than as fiction. A man said he’d gone to stay with a friend who lived in Devon or Cornwall… anyway the friend told him if he fancied getting up early he’d show him something amazing. So they duly got up early and went for a walk in a nearby wood. As they approached a stream, the friend motioned him to be quiet and they crept through the bushes til they could see the stream. They peered through the undergrowth and there sitting on a rock was a little man about 18 inches high, washing his socks.
It was presented as a real experience. It was absolute years ago but I’ve never forgotten it.