I thought squirrels tails were solid (not fluff & more like beaver tails) - I guess that I got this idea from depictions in disney movies. Yeah - I finally noticed that this wasn't true a few years ago at age 17ish. (Boy do my friends get a kick out of this story)
A childhood belief about general

others believed things like this
- When i was little, i thought dogs poop from their tails.Anon
- I thought a Monkey was just a baby Gorilla and when they grew up their Tails fell off!— Brainhead
- That hot dogs were made from rat tails.Anon
- When I was little, I used to believe that wind was caused by whales flapping their tails way out in the ocean.— Nanohawk
- I used to believe that waves were made by whales who lined up in a row and flapped their tails.— Passionola
- I thought there was a beaver living in the toilet that would bite me if I wasn't ever vigilant. — Camille