My sister used to believe that dried white dog poo was a natural type of chalk.
A childhood belief about cats and dogs

others believed things like this
- Split walnuts... i used to think they were dried pig noses!!— SaMmI LaMy
- i used to believe that dried prunes were giant rasins.— Jacquyln
- My brother used to believe that dried out boogers were actually "paving" the inside of your nose. — sm
- When I was younger I believed that pistachio nuts were made out of beetles that had somehow been dried out. — Alyssa
- I used to believe that Mt. Rushmore was a natural phenomenon.— LauraBee
- I used to think Mount Rushmore was a natural formation. Thats how much I believed in God.— Judy