We used to have our milk delivered to us, and the truck that brought it was white. My sister convinced me that chocolate milk would only be delivered by the brown trucks (UPS). Since we never got chocolate milk, and the UPS trucks never came to our house, either, the story made sense for years.
A childhood belief about milk

others believed things like this
- I used to believe that brown cows made chocolate milk and white cows made regular milk.— andrew mient
- I used to believe chocolate milk came from brown cows and regular milk came from black and white cowsAnon
- i used to think chocolate milk came from brown cows and normal milk came from white cows Anon
- that black women breastfed chocolate milk instead of white milkAnon
- Chocolate, they say, rots your teeth. I believed if you drank chocolate milk, your bones would be brown.— Dellio
- I used to believe that brown cows made chocolate milk — Simone