My mom told me that a glass of water has gone bad when you can se bubbles in it. To this day, I have big problems with drinking bubbly water, even if I'm very thirsty and there's no fresh water in sight.
A childhood belief about drinks

others believed things like this
- I thought that hydrogen was pure water (since I knew hydro- meant water) and H2O was impure some how— Hexetic
- I used to believe that if i splashed water on the wall during a bath, the water would turn into spiders— justin
- that bathroom tap water was recycled "potty" water from the toliet. — livingdeadgirl
- ***I used to believe that water towers was a place that someone lived and they controlled the water.— C H R I S T E N
- I didn't think you could put out a fire with hot water - only cold water would do.— Katti Pytt
- I used to believe that hot water was red and cold water was blue.Anon