When I was a kid my father swore so much at other drivers that I believed it was a neccesary part of driving. So when I'd ride my bigwheel up and down our street I would spout obscenities, which embarassed my father so much he hasn't sworn since 1984.
A childhood belief about swearing

others believed things like this
- When i was child, i used to think my father was my father christmas.— BeB's
- My father told me that Spam was a mix of sparrow and ham. I believed this for years lol— Tara the Terror
- Hasn't everyone, at some point or another, believed that pickles grew on trees? I sure did.— Matt c.
- "Our father, with Art in Heaven, how do you know my name?"Anon
- our father which art in heaven,Harold be thy name— oddsox
- i used to say 'our father, who art in heaven, hello whats your name?'— lou