When my sister and I were 5 & 6 respectively, I told my sister that the dog doo in our front yard, bleached white from the sun, were dinosaur bones.
After telling her that, she would fill her pockets with sun bleached dog doo all the time. This went on for about a year. Our mom used to empty our pockets prior to doing the wash. I remember our mom always telling her to stop doing that. She would stop for awhile, then start collecting again.
A childhood belief about cats and dogs

others believed things like this
- When I was little my sister told me salt was ground up dinosaur bones...I barley ate for a month...— Chandler
- my mother was able to stop me from sucking my thumb by telling me it would rust and fall off!!— lv
- i used to believe (when i was little) i could make the wind stop and start by saying, "stop" and "start"— Ali
- I thought if 3 cards stopped at a 3-way stop sign then they had to stop forever until Christmas.Anon
- When I was young, I used to belive that
if you pushed the stop button in the bus it would stop for good.— Tom (Norway) - My uncle told me that if I didn't wash my ears when I took a bath, corn would start going out of them.— Ebod