I overheard my mom one day say that if you "slept together" that you needed to get engaged and then get married. I started sobbing because I had crawled in bed with my big brother the night before during a storm and I was convinced that I had to now marry my brother when I got older. I was crushed.
A childhood belief about marriage

others believed things like this
- i used to think that every family had a brother and sister and they married eachother when they got olderAnon
- That you had to marry your sibling. During this period of time I devoliped a crush on my brother.— don't worry I'm a girl
- I used to think I was going to marry my mom, even though my dad was already married to her.— nick
- That only men farted. I literally started sobbing the first time I realized I farted.Anon
- My brother once convinced me that the wind was "leftover hurricanes"— Tufty the Squirrel
- I used to believe that one day, my younger brother would be older than me and then he'd pick on me!— Andrew