I thought that the Gremlin rules (from the movie, like don't get the wet, don't feed them after midnight) applied to all animals. I was so scared when my dog was outside in the rain.
A childhood belief about cats and dogs

others believed things like this
- My dad thought when he was little, rain was caused by army guys in the clouds with rain guns. — Daughter of the Weird
- I used to believe there was a secret door to the gremlin world hidden under my bed— Mel
- I used to believe I could control the weather by singing rain rain go away or blowing the clouds away.— Shannon
- I thought the term maiden name actually applied to women who were maidens.— Natasha
- I believed that the rain would melt everything...I was terrified to go outside in the rain! — Cris
- I thought there was no midnight in military time; instead, it’d be 24:00.— Enrico