I used to think that 'non toxic' was a color. I always did wander why is was written on every crayon.
A childhood belief about toys

others believed things like this
- I used to think there was a crayon called "window color." Turns out there isn't. — Not the brightest crayon in the box
- I thought tonic water was toxic water and wondered why would anyone drink it if it is toxic?— Dr.Badguy
- I used to wander what my name would be in other languages. I thought that names worked the same way as words. — Simon
- I used to believe that the Bible was written by Moses, with God whispering everything in his ear, in English. — Jj
- I used to think my priest was a bit foolish for never having noticed that Dog is God written backwards— anticap
- I though the "D" written in "Walt Disney" on some videos was actually a backward "G".
— A. Nonymous