When I was small I thought that the L,M,N,O,P part of the ABC's really was "Elliot went pee". I have no earthly idea why but that is what I thought until I was singing one day and my mother informed me otherwise.
A childhood belief about spelling

others believed things like this
- When I was young, I believed that because my mother was born in New Mexico, that I was part Mexican.Anon
- I thought it was illegal to own a minivan if you lived in Arizona. I have no idea how I thought that.— Julia
- That song that goes:
I'll never let you go...
I thought he was singing:
Another machine gun...
Haha.— Kelle - The buckinghams song "kind of a drag", i always thought they were singing, "Canada Dry"— bobbybobby
- My daughter thought Paul McCartney was singing "Hey Dude" instead of "Hey Jude". Anon
- When Madonna sang "let the choir sing" in "Like a Prayer", I thought she was singing "love by proxy"— Kristen