In elementary everyone started to get into calling spirits from an empty bottle. You had to say a rhyme out loud while holding your hand over the bottle. As soon as you felt wind coming out of it, that meant the spirit was there.
I did this a few times and really believed that I had made friends with a spirit called Steven. He was always with me to look after me and at night he used to sit at the end of my bed to keep monsters and other ghosts away. I missed him when one day I realised he wasn't there anymore.
A childhood belief about ghosts

others believed things like this
- I used to think an evil spirit type thing called Wango lived in my dog. I was terrified of that dog.— Franklin
- I used to think that my right hand wasn't my right hand anymore if I turned around.— Mike
- I thought that elmers glue was made from milk, since it had that cow on the glue bottle. — Monty
- that a piece of liver in your fridge if left overnight would wrap itself around a bottle of milkAnon
- I used to believe that it wasn't wind that made the tops of trees move.. It was dinosaurs.— H
- I had my wife convinced that Steven Hawking made his fortune as the original voice for the speak N spell toy.Anon