For some reason I used to believe that they weren't REAL cows unless they were black and white dairy cows. I have no idea what I thought the other cows were but I know I didn't classify them as proper cows.
A childhood belief about general

others believed things like this
- 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
- I used to believe that brown cows made chocolate milk and white cows made regular milk.— andrew mient
- When I was little I thought cows married horses, cows were all female and horses were all male. — Sheila
- I used to believe that brown cows gave chocolate milk, and that white cows gave white milk.— James
- When I was 6 I used to believe that chocholate milk came from black and white cows. Silly huh.Anon