When I was very young, Smoothie, our English Bulldog, was very ill with cancer. On one of many visits to the 'doggie doctor' I was left alone with my imagination in the waiting room. Since I had never met the 'doggie doctor', I sat trying to visualize him. That is when I decided if the doctors were dogs, then the cats must be nurses.
A childhood belief about cats and dogs

others believed things like this
- I used to want to be a doctor when I grew up, because doctors never die, as they can cure themselves.— Stuart
- When I was little, I used to think that cats and dogs thought in English???— Isabella
- I used to think doctors were male and nurses were female.Anon
- My sister and I thought cats and dogs were the same animal, the dogs were male and the cats were female.— Paul
- I used to believe all dogs were male and all cats were female. I still call dogs "boy" and cats "girl." — Kelly F.
- I use to believe that cats and dogs were the same species; cats were girls and dogs were boys.— poopcrystals