Remember "Crazy for You" by Madonna?
I heard "two by two their bodies become one" as "two by two their bodies decompose". As I was not quite 10, I thought this was the nastiest thing I had ever heard!
A childhood belief about misheard lyrics

others believed things like this
- I thought that Siemens was a factory where they manufacture semen for the bodies.Anon
- I used to believe there was nothing inside our bodies when I was about 4.— Connie
- I used to think that when people died, their whole bodies were taken up to heaven, not just their spirits.— Karrie
- I used to believe that bodies that were embalmed would stay preserved forever.— Leelee
- I used to believe that speed bumps were dead bodies that had been paved over.— Natalie
- I used to believe that when people died, their bodies would immediately turn in to a skeleton— fv