I once had a fox slink in through the cat door where it had a screaming match with the cat in the living room in the middle of the night. I came down the stairs and encountered it, when it ran for the dining room. I threw the cat in the bathroom, closed the door, and opened the front door then went into the kitchen and after waiting a few moments went back to check if it was still there. I was sneaking down the hall when it came sneaking around the corner. We both screamed and it ran out the door, leaving a large VERY stinky puddle on the floor. House now for sale. Inquire if interested.