The region I live in has a river and a beer named after it. This river is very fast flowing and dangerous and as a kid I was always told I was never to swim in it or drink the water (for my own safety.) I always thought it was because the brown river water was actually the beer of the same name and they use to bottle the river 'beer' and if I swam or drank it I'd get drunk and contaminate the beer.
A childhood belief about water

others believed things like this
- I used to think that apple juice was beer and I'd drink it all the time and pretend to be drunk.— Dee
- I used to think that Root Beer was beer with less caloriesAnon
- i used to believe that root beer was made with root juice and beer— tm
- I used to believe that if you swallowed wine or beer in two sips then you would get drunk— Heather
- That you had to be a male to drink beer.— andrei gaspar
- I always thought there was a drinking age for coffee, because it was an adult drink like beer and wine.Anon