Back in elementary school (and really, just about right up until high school), I used to think that the second line of "Do, a deer" was "Ray, a chocolate-golden sun". That lasted until I was about 13.
A childhood belief about misheard lyrics

others believed things like this
- When I was in elementary school I use to think that teacher lived at school at their desks all year long.Anon
- When I was in elementary school nuns cam to our school. I thought that 'nun' meant they had no religion.Anon
- I used to think my elementary school gym teacher's name was "Jim Class".— Brandon Campbell
- When I was in elementary school, I believed my heart moved across my chest throughout the day.— Allison
- One of my friends in elementary school thought that Osama bin Laden was "a son of Aladdin". Anon
- When I was little, I used to believe that deer could only cross the road at the deer crossing signs. — Shellie