Those screechings you may have heard last night at 3 AM were coming from our backyard. I ran out there with a flashlight and found a couple of raccoons swimming in the pool. The bright light scared one of them into climbing out and up the fence. The other continued dog paddling in circles nonchalantly in the water. It had sounded like they were fighting with each other. Maybe just having a good time.
By the time I fetched my camera, this one was off into the neighbors yard.
Remember that 1968 Burt Lancaster movie “The Swimmer“?