My mother told me once (and I believed it), that Chow dogs were poisonous because they had black tongues. I always kept a safe distance from then on, if I ran into that kind of dog.
A childhood belief about cats and dogs

others believed things like this
- when i was younger i thought ants had tongues. i always pictured them sticking their tongues out at me. — i was an idiot
- When I was a wee one I believed dogs were either black or white underneath thier coat....It was the 60's.— maddog
- My older sister told me squirrels were poisonous, and I believed her until I was 9.— Jenni
- When my daughter was small she developed tonsillitis but she told everyone she had "tongues and lighters"— Jeannie Bee
- When I was young my mother told me that old people kind of shrink. I thought that they shrunk into babies.— dont know
- I used to believe that old black Bananna skins were dogs lips that had fallen off.— Tracey Cross