I used to believe that "tentacles", like on a squid, were pronounced "testicles". I mortified my father one night at a restaurant. He was eating Calamari and I loudly asked him, "Dad, don't the testicles get stuck on your teeth?". It was a very crowded restaurant. Several tables around us started laughing and he turned bright red.
A childhood belief about general

others believed things like this
- I used to think that 'testicles' was the word for the arms of a squid or an octopus. — Emily
- I used to confuse tentacles and testicles when I was younger. It was funny— Chelsea
- I used to think pee was in your testicles.— R.G.
- I used to believe that "BYO" was a name of a restaurant.— Ames
- When I was young I used to think my testicles held the pee!Anon
- I used to believe that testicles were called tenticlesAnon