when my mom used to tell me someone had a sweet tooth, i thought it was like an actual tooth in the back of your mouth, and only certain people were born with that extra tooth. I was jealous of people with "sweet tooths" because I wanted an extra tooth in my mouth too.
A childhood belief about sweeties

others believed things like this
- i had a really sweet tooth and i asked my mum when it would fall out...— saza bob
- I used to think that the tooth fairy puts you in a deep sleep before stealing your tooth/teeth.Anon
- I used to believe that in the tooth fairy took all your teeth and built a tooth city for her to live in!Anon
- when i was a child i used to believe if i put my tooth under the bed the tooth fairy would give me money— milena
- i used to believe that if my tooth came out the tooth fairy would come and kill me!!!— dangerous tooth fairy
- i used to believe that the tooth fairy was a big tooth with wings— mary