When I was little I used to believe that Tampon applicators were made so girls could stand up and wee like boys!!! I still think it's quite a good idea...
A childhood belief about periods

others believed things like this
- I always thought cats were all girls & dogs were all boys ... I have no idea why.Anon
- I thought that the difference between girls and boys was that girls have teeth.
Anon - I used to believe all babies came out as girls and later on in life some of those girls turned into boys — Tom
- When I was little, I thought that since boys stood up to pee, they could stand up to poop.— Lacey
- I used to believe that boys, gave birth to boys and girls gave birth to girls. How i'm so wrong now.— Sarah
- I used to believe that little boys grew up to be girls and little girls grew up to be boys. — Darin