When I started reading comics, I used to think people were yelling "APPLES" when they were happy to see a performance. Later on I learned the word "applause".
A childhood belief about spelling

others believed things like this
- When I was little I saw the word "applause" and thought it said "applesauce"Anon
- i used to associate the word appetite with apples, if you ate apples, you had an appetite. — elly
- I believed that the word optimistic was something to do with opticians and being happy with your eyesight.Anon
- I used to wonder when reading the obituary column how people always managed to die in alphabetical order.— diane
- I was told that your belly button is where you put salt when you eat apples in bed.— Shurnuff
- Once my mother told me that if i ate 2 apples in a day, i would automatically get diahrreah!Anon