I used to believe that, since my last name was law, terms such as "mother-in-law" only applied to my family. So for instace if someone's last name was smith I thought it would be "father-in-smith" or "sister-in-smith".
A childhood belief about names

others believed things like this
- I used to believe that Will Smith's name wasn't Will Smith, but that it was World Smith.— Scott
- I used to think "Aero Smith" was only one person.Anon
- When my sister's father went to Seattle, my sister said "Is Attle nice?" She thought Attle was a person's name— zzo38
- at four, I thought my mother was female and me and my father were fee's Anon
- I thought the term maiden name actually applied to women who were maidens.— Natasha
- i used to believe that mother and father didn't sleeped— yacine.tah du 91