I used to believe that you would only ever grow on your birthday, so on the morning of my sixth birthday I was very dissapointed to find that I was approximately the same height as the day before. I had expected to be at least a foot taller.
A childhood belief about birthdays

others believed things like this
- Up until I was almost 11, I thought that a birthday suit was a special outfit you wore only on your birthdayAnon
- I used to think that a birthday suit was a special outfit you wear on your birthday— Bri
- i thought that when it was your birthday you grow and then you didn't grow until a years time.— hello
- I used to believe that on your birthday, you didn't advance to your next age until you ate your birthday cake.— Casi
- My parents have the same birthday -- month, day, and year. I though all mom's and dad's had the same birthday.— Cait
- i used to believe that if i walked in the rain i would grow taller.Anon