For some reason I had two weird beliefs related to octopuses when I was about five (maybe four, maybe six but around that age). The first was when Dad told me that my aunt and her roommate were visiting and for some crazy reason, I thought that they'd bring an octopus with them.
The second was that I thought that at some point in history, an octopus had tried to be Santa but then realized it couldn't breathe air, so it gave up and let Santa do the present-delivering.
A childhood belief about general

others believed things like this
- that pickles were octopus legsAnon
- I used to think that 'testicles' was the word for the arms of a squid or an octopus. — Emily
- I was told that for every christmas carol i sang before christmas time santa would give me one less present!— K
- My uncle convinced me that if you ate octopus, the suckers on the tentacles would suck your tongue out— Minnie
- From the Carpenters hit I always sang "calling octopus of interplanetary craft" instead of "occupants".— Paul
- When i was younger i used to believe tha the cat gave Santa the keys to the house to get in !— Nikki Kellett