I remember that I believed that, in the Annie song "Hard-Knock Life" from the musical, it was "hard (not) life" which means that they enjoyed the whole orphan labour thing.
I wonder if I ever sang it in public?
A childhood belief about misheard lyrics

others believed things like this
- i used to think that "the king and i" was a musical based around the life of priscilla presley— erin
- I thought there was some video games so hard that if you died on them you also died in real life!— Kakuri
- I used to believe that a life sentece was for when you stay in jail for your whole entire life.— Sara
- I used to believe that my life was a video game with only 1 life and that God was playing it. — Rina
- I used to think that the line in the song "Life in the Fast Lane" was "Fights in the Bat Plane".Anon
- When I was 6 I believed that on nice summer days you can see the world spin if you just look hard enough :)Anon