My mum had my brother me and all my cousins believing in imaginary creatures called Gnomies. (You have to pronounce the g as in google).
We actually believed that the gnomies used to do all these sneaky little things. Whenever mum lost anything she used to blame the gnomies for stealing them. Especially her false teeth. I now have my children believing the same thing!!!!
A childhood belief about fairies

others believed things like this
- When I was very young, I assumed that false teeth were taken from dead people's teethAnon
- I used to think that the things you get in your teeth were called feelings.Anon
- I used to think that the tooth fairy puts you in a deep sleep before stealing your tooth/teeth.Anon
- My brother was terrorised by an imaginary charecter called anorak doo-dah— Corin
- My mom had me believing that, like fruits and vegetables, the crusts of bread were the healthiest part.— StephTheGeek
- I used to believe that when you lost your teeth, all of them fell out at the same time.Anon