I once thought you could get cancer from moles, as in the rodent. I later found out it meant skin moles, not rodent moles
A childhood belief about general

others believed things like this
- i believed that moles wore davy lamps on their heads so they could see underground— Omi
- I used to believe a mouse lemur was a type of a rodent.Anon
- I used To believe that if you picked your freckles you would get skin cancer— Janella
- In 'Call Me Maybe', I misheard 'Ripped jeans skin' as 'Rich cheese skin'. — Carly Rae Cheddar
- I thought you always die if you A. get cancer or B. have a heart attack— Nate
- when i was little i thought people with big heads or big noses had cancer...Anon