When I was little I used to believe that Crystal Light was the tool of the devil. You remember that commericial that went "I believe in Crystal Light"? Well, one day I was watching TV and this commercial came on and I ran to my mom and screamed "Mom, mom, the people on the Crystal Light commericial are going to hell, they don't believe in God, they believe in Crystal Light!"
A childhood belief about adverts

others believed things like this
- I used to believe the the tooth fairy was a Pokemon fan because she got me Pokemon Crystal for my lost tooth— Pokemon fan
- I used to believe there was a newsreader inside the radio where the light was!!— Christine
- Whenever I went to bed, I use to believe that when i flicked my light on and off I would signal aliens. — Laura.
- I used to believe that God was the light rays shining through the clouds.— Lynn
- I used to think light sabers were called life savers.— alison
- In "God Bless America" I thought it was "With the light from a bulb" instead of "from above."— Carol