When I was little I used to try to balance on the edge of the kerb as I walked along it.
Believing this to be "kerb crawling", my mum was pretty shocked when I loudly announced that this was what I was doing and that it was illegal!
A childhood belief about criminals

others believed things like this
- I used to think that Legal and Illegal meant the same thing (illegal)— Dhruv
- i used to belive a fever was a beaver crawling in my head i no right?— poe
- i used to believe that when i had an itch or a tickle, it was because there were ants crawling beneath my skin— Willa
- Whenever I got pins and needles in my legs, I thought that woodlice where crawling around inside them!— squee
- that sneezes were caused by little pixies crawling up your nose and brushing past your nose hairs— Joanna
- I used to think that it was illegal to get married before the age of 30.Anon