I got a 'magic' pack of cards once and all the cards were of the 9 of hearts. I didn't know this and when I saw that they were all the same I thought I had done this and changed them. I remember constantly trying to change them back to normal but it just wouldn't work.
A childhood belief about magic tricks

others believed things like this
- When i was little, I used to send Jesus birthday cards on christmas and thought he would read them in heaven.Anon
- I used to believe that checks and credit cards allowed you to get anything you wanted with out paying for it. — Diamond
- I thought if 3 cards stopped at a 3-way stop sign then they had to stop forever until Christmas.Anon
- When i was a kid, i thought that the tv changed channels by dark magic.— Anna
- Because of cartoons, I thought that to drive you'd just turn the steering wheel back and forth constantly. — Mitsuki
- I could never work out how they used to change the bands over so quickly when i listened to the radio— graham