This thing that's happened to me, happened on two different ocassions. One time, I was in my parents' room on the computer, then all of a sudden, I heard something near the door. Then, it opened slightly! Usually, it would be my cat who knows how to push open a door, but when I looked there was no one there!

The second time, I was in the kitchen doing dishes and watching T.V. Everything was normal. Then all of a sudden, the basement door slammed open. But how could that happen if a trashbag was blocking the door? That had to be the force of a human being! There were no lights on in the basement which meant that there was no one down there. So what was it?