I used to believe the lyrics to Simon and Garfunkel's "Scarborough Fair" were, as follows: "Are you going to Scarborough Fair?/ Where the Dead live and die . . ." As such, I was irrationally terrified of the song for many years. Always imagining this carnival of the dead, full of skeletons on ferris wheels and such.
A childhood belief about misheard lyrics

others believed things like this
- I told someone once that my favorite band was the Funkel brothers- Simon and Garth.
(Simon & Garfunkel)— Josie - I used to beleive that the moon was where the local fair was.— tah
- I used to believe that the sky was full of dead people and I would see them if I went high enough— Maria
- I used to believe that a street sign that read "Dead End" meant that there were dead people buried there.Anon
- I used to think that a "carnival barker" was a person who barks like a dog at a carnival.Anon
- I used to believe that if you went over a dead end, you would die. — CoyoteBitch