When I was young I thought that drinking milk made you grow a moustache. This is because my dad mentioned my 'moustache' when I had milk round my mouth when I was little. It didn't stop me drinking milk though, in fact I still have a glass every night before bed. I am female and nearly 30, so I'd better watch out for that moustache thing.
A childhood belief about milk

others believed things like this
- When i was a kid, i used to think that my dads moustache grew out of his nostrils — l.j.
- I used to believe that milk was what cows peed. Never stopped me from drinking it though!
— Reuben - I didn't believe that a cow's milk and the milk in the fridge were at all related!Anon
- When we were little my sister thought if you mixed cow’s milk and water you’d get goat’s milkAnon
- I used to believe that brown cows made chocolate milk and white cows made regular milk.— andrew mient
- that black women breastfed chocolate milk instead of white milkAnon