That Black Cat

About a year ago, just after we moved into our house, the strangest thing happened. I had been working on the house all day and Adam had been at work. We decided to meet somewhere for dinner since we had no food in the house. When we got back home, we found that Walter had shut himself in a bedroom upstairs. The door in that room doesn't swing any direction at all, it would have had to be intentionally pulled or pushed shut. Both cats hovered in a corner, scared of something and a black cat sat in the middle of the empty living room floor like he owned the place. He stared me down for a few seconds and then took off out the open back door. That's right, the back door was WIDE open! So strange. We still have not been able to explain it, and the black cat made me a little superstitious. We just locked the doors that night and went to bed with a loaded gun and sorta forgot about it after a few days. Well, I think he's back.... the black cat. He was staring us down again, only this time he was on the other side of the glass where he belongs. He looks nice enough, but he was staring Adam down for the longest time, and then me. He looks hungry and I feel sorry for him, but I don't really like him.