There have been many LOUD noises coming from my basement. I've gone down there with MACE and there's nobody there. NO, it's not a ghost.  My one cat likes to get up into my basement ceiling , which was dry- walled off by the previous owner. She gets up into it by the many holes that were put into it by the plumbers when they changed the  pipes. The question is ---how can one little female cat make so much noise ? It's a lot of bing, bang, boom !! It just has to happen at night, in the late evening when I'm trying to sleep. When I go down there, it's quiet, and I can't find her. I just realized as I write this, that she does it, when I shut them out of the room where I'm on the comptuter. And she does it at night, when I've sealed them off into the basement, by closing the basement doors.  HOW DOES SHE MAKE THESE LOUD NOISES ?