My older brother told me you could jump into a mirror and go to an alternate universe. I thought that the alternate universe would be cool and interesting, so we both jumped into the bathroom mirror and got injured.
A childhood belief about mirrors

others believed things like this
- when i was young i used to believe that my image on a mirror would come to life if i broke the mirror.Anon
- I used to believe that at the end of the universe was a big plywood wall.— matt
- I used to believe Sting was my dad in a parallel universe — Jenn Green
- I used to believe that twenty was the largest number in the universe.— Bernardo Fernandez
- Well,I really think that fairies and witches can be real! We're in a big universe and they can exist!— Raul
- I used to think that planet earth was the only thing that existed in the universe— Santiago