Once, when I was little, I watched this g rated movie (it was animated) and the person on the phone said the word 'crook'. From then on, I thought 'crook' was a swearword.
A childhood belief about swearing

others believed things like this
- when i was little i believed that when we watched a movie people had to act the movie all over a gen.
— Emmer - I always thought that my relatives were really tiny, and inside my phone when I talked to them on the phone.Anon
- When I was younger I thought MTV was an x-rated station because I thought M stood for Mature.— Aeris
- ‘Unadulterated’ meant that something wasn’t rated 18+ and was therefore safe for kids— Evie
- I used to believe that phone sex meant having sex with a phone!— Tracyca
- I used to believe that an animated film meant that the film had live animals in it.— reverb