I used to believe all deer were girls, and all moose were boys.
A childhood belief about cats and dogs

others believed things like this
- When I was little, I used to believe that deer could only cross the road at the deer crossing signs. — Shellie
- when I saw a sign with a deer on it I always thought deer had to cross the street by it. like a cross walk— only me
- I thought that the difference between girls and boys was that girls have teeth.
Anon - I used to believe that little boys grew up to be girls and little girls grew up to be boys. — Darin
- when I was a kid, I used to believe that only girls could be my friends and all other boys were my brothers.
— rajat - I used to believe that tigers were girls and lions were boys— Ruth