My grandparents and mother used to tell me that each and every baby was born a girl. However, if you wanted a son, you would have to take the baby to K-Mart and buy the proper parts and attach it to him. I didn't think there could possibly be another reason why there were different sexes and believed it for quite a few years.
A childhood belief about reproduction

others believed things like this
- I used to believe that you would go into Wall*Mart and buy a baby for $5.50!— Sam
- When I was little I believed that the mother vomited the baby. Anon
- When I was first told about intercourse, I didn't believe it. How could peeing inside a girl make a baby?— Art
- I believed that women who wanted babies ate a seed, which then grew into their baby. — World's Worst Scientist
- when i was 5 yars old i thought that a baby is born axacly a year after the marifgeAnon
- How could Baby Jesus be born on Dec 25th, get tall, grow a beard and then die, all by Easter. Whew!— Joe