I used to believe that llamas had two heads. I was obviously convinced by the special effects in Dr Dolittle. When I first saw one with only one head I reasoned that it was a different breed. I won't admit to how old I was when I came to this conclusion.
A childhood belief about general

others believed things like this
- Llamas not Lemmings were suicidal!Anon
- I used to believe that when people got shot in the head that their heads would blow up. — Emily
- I used to believe that heads of state had diferent kinds of heads on their shoulders— stupid elado
- I used to think an Afghan hound was a breed of terrorist dog that had to fight in the Taliban!Anon
- I used to think that if someone gave you acid, you could completely counter the effects by taking an antacid.— abracadaver
- I believed that the breed of dog called Boxer was called that because they could stand up and box.Anon