I used to believe that the STYX song "Come Sail Away" was Come, Stay Away" Which really doesn't make any sense.
A childhood belief about misheard lyrics

others believed things like this
- I thought it was impossible for anyone to lift more than their own body weight. Just seemed to make sense..— Xenomorph
- Yesterday I realised that invisible ink doesn`t make me invisible.— Jonathan Eleven years old
- in the song "show me heaven" i used to sing "make me breakfast" instead of "leave me breathless"Anon
- Used to wonder why a hamburger is called that if it doesn't have any ham...— Axecutioner
- I was told that if one doesn't cover their mouth when yawning that their soul would escape.Anon
- i used to believe that if u got permanent marker on yourself it would stay there for ever and ever— abi