I don't know where it came from, but I do distinctly remember when I was about 7 or so that we must have a limited number of words to say in our life. That one day, I would run out of words. I kept quiet sometimes, so that I would not use my allocation of words too soon. Maybe I should have kept my mouth shut more, and not got into so much trouble!!
A childhood belief about speaking

others believed things like this
- My mom used to say that if I said bad words, poop would appear in my mouth— Nina
- I used to believe that all four-letter words are bad words.Anon
- I thought "prison" and "prism" are the same words as each other.Anon
- I thought the word economical was actually two words: eek and omical.
— Nancy M. - When i was in kindergarten, i used to think that i invented the words million and billion— Comonsnadama
- I used to wander what my name would be in other languages. I thought that names worked the same way as words. — Simon