When I was a kid, I used to think toothpaste was made from teeth. It made sense - where else would you get all the minerals and other stuff teeth needed? Besides, fish paste was made from fish, and meat paste was made from meat...
A childhood belief about bathrooms

others believed things like this
- When I was six my sister told me Meat Pies were made from mashed up rats...to this day I can't eat a Meat Pie.— Jamie
- i used to believe the white part in fish meat is because of the fish's milk— Kim
- My Dad had me believe - for YEARS - that Lamb meat was man made.— Anthony
- I also thought that meat balls were made from testicals— Glenn
- I used to believe that pickles were hot dogs made from turtle meat.— Jerry Moe the Gimp
- I used to believe that contact lenses were made out of fish scales— ddm