I used to think that the Predator was sitting in the tree outside of my bedroom window. I used to build up my comforter thinking it would shield my body heat.
PS. I still think he is there ;-)
A childhood belief about aliens

others believed things like this
- I knew lightning could come in through my bedroom window and kill me.
— Cyn - When I was five, I believed God was big as a tree, a tree being the biggest thing I could convieve of.
— Chris - I used to believe that the Doller Tree store was an actual tree.Anon
- when i was younger, i used to believe when i slept a other world was buildAnon
- I used to believe that the heat from the furnace came from hell, and that it was a straight drop there.Anon
- I used to think what heated the food in the pan was the boiling water, not the heat under it.— Mario