"My Mom Found This Today While Looking Through An Old Notebook. I Wrote It As A Kid, But Have No Memory Of Doing So"
"If I was invisible, I would haunt my parents. I would first start out with minor things, like pulling their covers at night or knocking dishes over. Then it would get worse. I would turn the lights on and off. I would whisper sinister things in their ear if they decided to move out; I'd stalk them."
If you really want to mess with people shower them with love messages and see what happens.