I used to believe that when I swam in a swimming pool too long I would grow fins and be able to breathe underwater, like a mermaid, and still be able to survive out of water!!
A childhood belief about swimming pools

others believed things like this
- I used to believe that i swam more than 2 hours I would become a mermaid.— M11cazares
- When I was little I thought that if I stayed a long time in the water I would become a mermaid.— Salma
- When I was little I used to think that my mom was a mermaid because she never went swimming with me— Martina
- I used to think that a "pool shark" was an actual shark that lived in a swimming poolAnon
- When I was young I used to believe if you died in the water, you'd become a mermaid.— stefanie
- I believed that the ladder on the back of a trailer/rv led up to a swimming pool.— marilese