"I woke up a few years ago to the sound of a cat yowling outside. I had 2 older cats at the time, and it got their attention and agitated them. Just sitting and staring quietly. One was a taller black cat, I assumed male, and the other was a smaller black-and-white one, loafing next to him. I watched them for a few minutes, then let the curtain drop, and when I looked back a few minutes later, they were gone, and I kind of just forgot about it...