When I was seven, I used to believe that when a people said they "didn't drink" that they did not consume any liquids. I was pretty much perplexed, but figured it might be possible to get enough water from vegetables, fruits and other food products.
A childhood belief about general

others believed things like this
- I used to believe that people who were lactose intolerant could not consume ANY dairy products AT ALL. — Marideth
- I used to believe all liquids were water-based with things added to it to make different kinds of liquids.Anon
- If you eat your fruits and vegetables you will grow much faster and your muscles will be very happy!— Bruno
- My mom had me believing that, like fruits and vegetables, the crusts of bread were the healthiest part.— StephTheGeek
- My mom threatened that if I didn't eat all my vegetables that the police would come and arrest me.— Lisa T.
- I thought tonic water was toxic water and wondered why would anyone drink it if it is toxic?— Dr.Badguy