when i was 8 i read that all the water in the world is reused all the time, and I assumed that ocean water, which had touched giant squids, had been reused as the water in my shower.
I was terrified to take showers because the water had touched giant squids before, and washed myself in the sink (including my hair). My brother found out I had been washing my hair in the sink, and when I told him why he cracked up and teased me about it relentlessly until I got annoyed and took normal showers again.
A childhood belief about water

others believed things like this
- When I was a kid I took two showers becaue I thought my hair was a plant and needed the water to grow— Tim
- I used to believe that lizards were little dinosaurs ready to enlarge of they touched the water — Mark
- I used to believe that water towers were giant metal spiders. Don't ask. — Goatgirl
- I used to think that water towers were giant golf tees.— adam
- That an undertow was a giant toe under the water that grabbed people and pulled them under.— mikita Jones
- I thought that hydrogen was pure water (since I knew hydro- meant water) and H2O was impure some how— Hexetic