I used to believe that the old tan M&Ms tasted different than all other M&Ms. I would eat M&Ms, but every time I tried a tan one, thinking maybe I'd gotten a bad one last time, I hated it. Needless to say, I was happy when they replaced them with the blue ones.
A childhood belief about general

others believed things like this
- Eifel 65 - Blue
I'm Blue (if I was green I would die...)
[I'm blue, da ba dee, da ba di.]— Matt - I Believed that somthing took the bread from the toaster and replaced it with toast.— Shukun
- I thought the guy who got shot at the beginning of Gunsmoke was replaced every week by a live guy.— Monica
- You know the eifel65 song "Im blue da be da ba di"
I thought he said "I'm blue I'm in need of a guy"— Anna - The song "Reverend Blue Jeans" turned out to be "Forever in Blue Jeans." Who would have believed that?— music lover
- I used to believe that scars tasted like bubble gum— dani