I used to think that the chorus from the song "Stop In the Name of Love" was "Stop! in the neighborhood... before I break your heart" I was singing it at the top of my lungs one day and didn't understand why my brothers were laughing hysterically at me.. they explained of course and then laughed at me some more. Ah well.
A childhood belief about misheard lyrics

others believed things like this
- I still believe that if I really concentrate, I can stop my heart from beating.— Patrick
- I used to believe that you shouldn't swallow gum because it would stick to you heart and make it stop beating.Anon
- I thought if 3 cards stopped at a 3-way stop sign then they had to stop forever until Christmas.Anon
- When I was young, I used to belive that
if you pushed the stop button in the bus it would stop for good.— Tom (Norway) - The song called heart of glass mixed me up as a kid. I heard "Heart and ass". — oops
- I didn't understand about boiled eggs until my Mum explained I wasn't supposed to eat the shell as well.— Chris