When I was young my Mum started to collect all our waste foil up, when I asked why she said it was for the blind.
From that I guessed that Braille books were made out of recycled foil as it was easier to stamp the dots into foil than paper.
A childhood belief about eyes

others believed things like this
- i once believed that foil in the chocolates are part of what we should eat.— angela
- When I was little my dad told me that if I chewed on aluminum foil I would pick up radio stations. — Alex Allegretto
- The phrase 'Recycled toilet paper' always worried me.Anon
- I used to think that the wax statues at Madame Tussauds were made of recycled candles and crayons.Anon
- when i was little, i ues to think the lil brown dots on ur skin were chocolate so i started licking them... — lil miz shorty
- I used to believe that dot-to-dots were called 'doctor dots'.— Jim