When I was eight, commercials for the Coloriffic brand of coloring impliments were all over the place. And I desperately wanted a Coloriffic brand thing, because it showed the kids drawing wild stuff that came to life. Unfortunately the school supply shopping trip passed and we just got normal Crayola (I didn't bother telling my parents why it had to be Coloriffic and nothing else so I just went with Crayola). It wasn't until about fourth, fifth, or sixth grade and I got a set of Coloriffic colored pencils that I realized I had been done in by a clever marketing ploy.
A childhood belief about adverts

others believed things like this
- I used to think that testosterone was a brand of motor oil.— Grungi
- that DOT was a particularly popular brand of motor cycle helmet.— Gary Watrous
- When I was little I thought "Pencilvania" was a huge store that sold pencils and nothing but pencils.— Tim
- I used to believe that school was a place kids go to get turned into adults.— Samantha
- I used to believe that Eagle Brand Condensed Milk was actually an eagle's milk!Anon
- Migets were people who were bad when they were kids and there parents didn't let them grow up.— Teresa