When I was a kid, whenever I heard someone saying that they were on a diet, it was always an overweight person. So, I thought that "on a diet" was just a polite way of saying "fat". Once, my mom (who wasn't heavy) mentioned that she was on a diet. I kept arguing with her, saying, "No, you're not!".
A childhood belief about eating

others believed things like this
- I used to believe that my dogs diet was clothes, because that was all I ever saw him eating— kay
- My dad used to tell me that "smoked" bacon came from pigs that had been fed on a diet of kippers !!!— Tony . Newcastle on Tyne
- I used to think that if you mixed a diet drink with a regular drink, it would explode. Anon
- I used to believe that overweight people were heavy because they didn't poop.Anon
- Until recently I thought you could only get diabetes from eating too much sugar not just from being overweight— Tooken
- if heavy people went on a plane i thought that it would tip over.— michael hague