Due to a misunderstanding about death and resurrection at Sunday school, I thought that you had to die twice for it to be 'final'. I remember watching Winston Churchill's funeral on TV and everyone being rather surprised when I asked why everyone was upset because he was coming back again afterwards.
A childhood belief about afterlife

others believed things like this
- I remember back in sunday school that if you stomped on the ground you would hurt satan. Anon
- I thought that after the resurrection Jesus became the Holy Ghost.— Meowpossum
- From a misunderstanding, I thought everyone’s ears were the same size.— Enrico
- that the money I gave at sunday school would go straight to God.— christine
- I used to believe that the sun shone brighter on a Sunday! Sunday in all languages is named after the Sun!!!— Vasu Moses
- Before I knew about death, I used to think people turned back into babies again after they got old. Anon