It's a dark night, full moon and a black cat perched precariously on an unused chimney. There's probably a long and drawn out story about this cat and it's adventures. What led it to be on a chimney? Was it chased up here by half starved apocalyptic survivors? Maybe it uses this perch to survey the surroundings and to locate humans.
Maybe it got cold out and some part of it remembers a time when the chimney was in use and the perch was a great spot to warm up.
Maybe you know a better story for this cat? I'd love to hear it.