When we were kids playing Cowboys and Indians, when my brother was 'shot' he always 'died' lying on his back legs straight and with his arms out each side. Eventually I became cross with his lack of imaginative poses and asked why he always 'died' like that. It turned out that he believed that everyone went into that position when they died because that's how Jesus died on the cross.
A childhood belief about people

others believed things like this
- When I was little I believed when an actor died in a movie, he died in real life.— Ben
- I thought there was some video games so hard that if you died on them you also died in real life!— Kakuri
- I used to believe everyone died when they turned 100, and they never died before or after.Anon
- I used to believe that when we died (and animals) died they were picked up in a bus with there name on it.— Lawny
- I used to believe that everyone died when they turned 40. — Sara
- i used to believe everybody died once they turned 100— mis-spent youth