I used to believe that if you ate, say Fish and Chips for dinner and then did a poo - That if you ate that poo the next day, the next poo would come out as Fish and chips.. Never tried this theory out though..
A childhood belief about weeing and pooing

others believed things like this
- I used to believe that my belly button was for putting salt in while in bed, eating fish and chips.— Julie F
- I used to believe that a fish cake was a fish in sponge and coated in icing. I believed this until I was 9.Anon
- i used to beleive the ice cream man was a fish man - becuase i hated fish.— jordan
- Burned fish fingers ment the fish was from the black sea.Anon
- i used to believe the white part in fish meat is because of the fish's milk— Kim
- i used to believe that scampi was fish toes instead of fish fingers....Anon