For some reason, I used to believe that if you put grape "stems" (the stuff left over after you've eaten all of the grapes) in the oven, that it'd turn into a huge baked turkey.
A childhood belief about general

others believed things like this
- I used to think that grapefruits contained grapes, and you got grapes by cutting the grapefruit open.— Grapefruit
- I used to believe that if you soaked a raisin (or prune) in water, it would turn back into a grape (or plum).— C.C.
- That baked beans were made of pasta! Spaghetti is?!Anon
- My mum used to tell me that baked beans were just peas covered in tomato sauce.— munky
- I used to believe that you could not make the car turn left or right without turning the blinker on.— Christy Shane
- I used to turn the TV off when I left the room so I didn't miss anything.— S.Lee