When I was little, I used to believe that underneath our skins, we were all just swimming with blood, like a big sack. If you got a cut, you'd bleed because were leaking. I found out about blood vessels in school and was a bit confused at first. Then we got to the capillaries.
A childhood belief about general

others believed things like this
- I used to believe that when I started menstruating, I would bleed to death from losing too much blood.— Debbie
- when I was young, I heard that blood had iron in it. I thought blood was red because it was rusty.— Hunter
- I used to believe that guns shot out blood because everytime somebody shot a gun in a movie you saw blood.Anon
- I used to think that blood flowed down one leg and up the other.
And I'm applying to medical school....— Nat - when i was litte
I used to believe that white people had white blood and black people had black blood.Anon - I used to believe getting the sack involved being put into a cloth sack.— Wangchuk