Ah I had four raccoons staring at me when I opened my bedroom door upstairs, due to me hearing some contretemps outside it at around 1 am. They looked at me with their beady eyes, as if to ask, what is your problem dude? I let out a banshee scream, and they rushed down the stairs like a herd of elephants, and back through the laundry room from whence they came. However, all four tried to get out of the cat door at once, and only two made it. The other two repaired to behind the dryer. The two coons outside looked at me malevolently, and started making this chilling guttural sound that I found quite terrifying. I think they wanted to tear my throat out. So being the Baysian that I am, I closed the laundry room door, and decamped back upstairs to my bedroom. The coons were gone of course in the morning. The moral of the story? Keep your cat door locked at night!