No one else was home, the dogs were in the back yard. The only one in the house was the cat, and she was staring at me from the back of the loveseat. I went inside the house and pushed the door closed quietly behind me. I drew and cleared the house just incase.
It turns out that the door didn't latch shut, maybe the house shifting. I decided that if the door had shown signs of forced entry I was just going to call the police and let them clear the house.
I told my wife about it and she said, oh I forgot to tell you about that

I have a CCTV system on the house, and have a camera pointed at the door. So I sat down and reviewed some video. I found the day that it first happened. Wife had left to go swiming at her mothers and the door didn't shut behind her. The wind blew the door somewhat open. Then the cat peeked her head out and wandered out on the porch. The cat never left the porch thankfully, but I had to laugh. She went back inside and then kept peeking her head out, as to say this door should be shut and I'll protect this house until the people come home!
A few hours later my wife's aunt came over and when she saw the door open, she didn't even pause. She just walked right in and shut the door. She never gave it a thought. I showed my wife and we both had a serious discussion with her aunt about the dangers of walking into a house that has an unsecured front door

