When I was younger I used to think that the song line "Mind the music and the step and with the girls be handy" in Yankee Doodle Dandy was "Someday when you're walking by the girls may come in handy."
A childhood belief about misheard lyrics

others believed things like this
- I thought that the difference between girls and boys was that girls have teeth.
Anon - I used to believe I could fly.
All I had todo was step of a flight of stairs and I'd be walking in the air...— Dolly - If you step on the cracks in tiles when walking through a street, fairies will die.— Maddie
- i used to think the song "walking in a winter wonderland" was "walking in a womens underwear"— stephen s
- I used to believe in my imaginary friend dooodle.
Doodle was a stickperson and was always smiling.— Samantha - when i was younger i used to believe that if i step on the lines of the tiles i would die — arouf gangsta