My childhood belief used to be that my parents used to make me believe that a ghost would appear if I didn't listen to what they told me.
A childhood belief about ghosts

others believed things like this
- I used to belief sloths lived in trees outside my childhood home. My older sister told me so.Anon
- I used to believe that the boogie man would come and get me if I didn't listen to my parents.Anon
- I loved watching the cartoon Casper the Friendly Ghost and wondered why the Holy Ghost never got his own show.— Robert
- I thought the Holy Ghost was the ghost of the Virgin Mary.— Texas granny
- King Henry VIII was named “the eighth” by his dad because the first seven didn’t listen!— Mojo
- When I was younger I asked my parents:
"If bees make honey, do flys make marmalade?"— Mike