I once believd that whilst swimming, you could regenerate the air in your own mouth, i.e whilst breathing out (head underwater), if I opened my mouth, I could catch my own air bubble and continue without havng to resurface. What added credibility to this was watching Tarzan (Johnny Weissmeller) doing etended underwater scenes. What took away this credibility was that I tried it and nearly drowned
A childhood belief about swimming pools

others believed things like this
- i used to believe that pools had underwater doors that sharks were going to swim out of.— marky
- i used to belive that when the doctor opened his mouth and went aaaaaa i thought he was trying to eat me.— matt
- I used to believe that there was a time limit whilst using the loo.— Helen
- I used to believe eating fish enables me to live underwater and eating veggy makes me prettier!— Melody
- I used to think Jaywalkers were people who walked briskly whilst swinging their arms.. whoops!— Lisa
- I used to belive that if i put my foot in my mouth, I would get foot-and-mouth illness— Emily Sathrota