When I was about 4 I used to believe the very last number that you could count to was called 'tendy' (pronounced ten-dee), so whenever I got tired of counting I would just say 'tendy' and be finished.
A childhood belief about counting

others believed things like this
- I used to believe that after the number "ten" came the numbers "tendy-one, tendy-two..." etc.Anon
- When I was little I thought you could get arrested if you accidentally skipped a number while counting.— Hailey
- When I was a kid I believed that the number 11 was pronounced "onety-one"— Alicia
- I thought that Count Dracula was the count from Sesame StreetAnon
- When I was little i thought lb for pounds was pronounced lubs, and i called them that for 2 years. Anon
- when i was little i believed that your social security number was the number you were born on the earth — christine