I used to think in the songs Call n Return by Hellogoodbye in the chorus when it says "say that you're into me" it was saying "satan is your enemy" I was like "Well, DUH!!!"
A childhood belief about misheard lyrics

others believed things like this
- I used to believe that the "shark mouth" nose art painted on military planes was to scare enemy pilots away.Anon
- I used to have an imaginary friend named Mr. Nobody. He would protect me from my imaginary enemy, Bad Elmer.— Kdees
- I used to believe that my cat was a reincarnation of the buddha and was sent by satan to squash me.— Nazza
- I used to believe that I couldn't eat deviled eggs because they were from satan and possessed.— Char
- I remember back in sunday school that if you stomped on the ground you would hurt satan. Anon
- I once believed that Tusken Raiders from Star Wars Where a Type of Demon like Satan in the BibleAnon