My grandparents used to always tell their dogs to "shut up", so I thought that the term was only used for dogs. Then one day my mom playfully told me to shut up, and I told her, "I'm not a dog!"
A childhood belief about speaking

others believed things like this
- i thought hot dogs were made from real dogs and sum tasted good sum didnt.— Wayne
- Thanks to the movie "Annie", I thought hot dogs were made from real dogs. — Katie
- I used to believe that if you told a lie, Dragonflies will come and sew your mouth shut. For real.— Casey
- I used to believe "mixed breeds" of dogs were made by two dogs being put in a blender— Andie
- My sister and I thought cats and dogs were the same animal, the dogs were male and the cats were female.— Paul
- My dad told me that Dalmation dogs were called 'Damnations', I really thought they were until I was about 9.— bunny