I thought that in "Let it Be" they were singing "Let it Pee" and I just couldn't figure out why anyone would NOT let someone else pee.
A childhood belief about misheard lyrics

others believed things like this
- I used to think that singers couldn't talk-they could only communicate by singing.Anon
- I used to believe that "euthenasia" was "youth in Asia", and I couldn't figure why that was A Bad Thing.— Kellye
- when i was really young, i couldn't figure out why i can't get older than my older sister.— angela
- 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