When I was little I used to always have my birthday parties on my actual birthday. One year, to trick me a couple of days before my birthday (and party) my mom said that my birthday wasn't on the 11th of November but the 12th. when I went to school that day I told everyone who was coming to my party that we got the dates wrong and they were all to come the day after. Well, needless to say, my mom didn't trick me after that!
A childhood belief about birthdays

others believed things like this
- 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 on your birthday, you didn't advance to your next age until you ate your birthday cake.— Casi
- 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 waited for the mail to come on my 11th birthday so that I could get my letter to Hogwarts... It never came.— Charlie
- I used to think that I could meet famous people by inviting them to my birthday parties...— ClearScientist