I read somewhere when I was young that the body has 7 layers of skin.
I asked my Dad if you would die when you ran out of layers... being busy at the time he just said "yeah" so I believed it till I was about 14.
A childhood belief about skin

others believed things like this
- When I was young I thought that police had soft skin, because this is how it sounds in French " Peau lisse "
— amine - In 'Call Me Maybe', I misheard 'Ripped jeans skin' as 'Rich cheese skin'. — Carly Rae Cheddar
- When I was 6 or 7, I believed that people could have yellow skin like in the simpsons— Noah
- my dad said to me once that if I swallowed toothpast one day I would die! I believed it till I was 12!!!— Floobloom
- i used to believe airplanes never land and would just fly forever, i believed in this till 8-9— Tuncay
- my aunt used to tell me that pinapples made your eyebrows grow. i believed it till i was about 10.— Anna