When my son was about 6 he loved to feel velvet. One day we went to a horse barn and he petted the horse's nose. He said, "it feels like velvet." I admit this is really bad. I told him, "Where do you think that they get velvet from? It comes from horse's noses."
I never really thought any more about it until he was traumatized in second grade by seeing his teacher wearing a black velvet pant suit and all he could think of was all the poor horses that had given their noses to make that dress.
Of course I apologized and feel horrible now. I never ever say things like that around the kids anymore.
A childhood belief about general

others believed things like this
- I used to think satin was a material like velvet.Anon
- I believe there are horses making the car go fast when people told me the horse power of a car.— Jake
- I used to think that beer was horse pee. Probably because that's what my mom told me...— Kara
- I was always told that beer was made from horse pee.— Just me
- I used to believe that unicorns were real creatures. I thought they were just another type of horse.Anon
- a donkey is just a small horse.Anon