We have one that lives under the piece of furniture in the corner. Around nine pm it marches out and marches straight across the floor, no shame, straight in front of us. I don’t know where it goes other than into the next room, but the next evening it appears from under the furniture again. This has been going on for several years, always in the autumn/winter time. The present one must be the great, great, great, great, great, grandchild of the original.
Years ago, our cats used to catch them and crunch them, but we’re a catless family now, and anyway during his last few years our last cat just lazily watched them, but couldn’t be bothered to move, let alone catch and crunch them.