I thought that Dad's were always older then Mom's, come to find out my mom is a few months older than my dad.
A childhood belief about family

others believed things like this
- My sister used to think that because I was 15 months older than her, I would die 15 months before her!— Nicola Braden
- a friend of my little sister's had 4 older brothers, so she thought that when you got older you grew a penis!Anon
- I thought my grandad would get older, so I asked him 'What do you want to be when you're older?'.— Afterlife Dreamin'
- when i was really young, i couldn't figure out why i can't get older than my older sister.— angela
- when i was little i thought my cat would turn into a lion when he got older.Anon
- When I was little I thought grown ups could fly but wouldn't tell me about it or teach me until I got older.— James the Great