My friend noticed, when watching her mum come out of the bath one night that there was a white string dangling between her legs. When she asked her mum what it was, her mum answered that she had a mouse living in her tummy...for years my friend believed this and told everyone about the mouse...!
A childhood belief about periods

others believed things like this
- I used to think that when I moved the mouse around on the mouse pad, I was giving the computer a massage.Anon
- Someone I know IRL used to believe that Goofy (Mickey Mouse's friend) was a walrusAnon
- I believed that ham was mouse meat, because it was pink and my dad told me so. — Zo
- When I was a child, I believed that the little mouse Perez existed.— David Montoya Velez
- My great-grandfather firmly believed, and had me convinced, that SPAM was mouse meat. — texasblue
- When I was little, my mom told me she was Karen from the Micky Mouse club, and I told everyone at school. — Amber