When I was little, and I couldn't get to sleep, I used to think that planes going overhead were aliens looking to kidnap children who weren't asleep when they should have been. I was always so scared, I would hide under the covers and shut my eyes tight and pretend with all my whole being that I was fast asleep so the aliens wouldn't take me away.
A childhood belief about aliens

others believed things like this
- when I was about 7 I thought that aliens hid under my bed. I wouldn'd sleep in my bed for a whole year!— *Rachel*
- when i was a kid, i used to think that if i didn't fall asleep, morning wouldn't comeAnon
- I used to believe that if I fell asleep lying on my front that my boobs wouldn't grow. And they didn't.— Booey
- I don't know where I got this from but for a while I thought that aliens were really God. — Heazure
- I used to believe that teletubies where a kind of aliensAnon
- when I was a child, everynight I used to think that the aliens would come to my bed to kill me!!!— maRc