In the Sound of Music song 'Favourite Things' in the line where it says "When the dog bites" i used to think it said "When the door bites" i never made sense to me but no one told me it was wrong until last year when i was singing it with my sister.
A childhood belief about misheard lyrics

others believed things like this
- I used to believe that the song "Another one bites the dust" was "Another one rides the bus"— Emmy
- What about "Another one buys a Datsun." You know, instead of "Another one bites the dust.— e-man
- I used to believe that beauty marks (freckels) were Butterfly bites!— Jolene
- My music teacher once said that music in an electrical piano was made by little tiny men that lived inside it.Anon
- I used to think that the sound after the toilet was flushed was ladies singingAnon
- I used to believe that the video clip are realized in one time and the singers are singing with to the music Anon