I used to think that if you were still in the park when the gatekeeper was about to lock up in the evening, he would come along with a megaphone and tell everyone to leave, like when the pool attendants say everybody out when you go swimming.
A childhood belief about in the street

others believed things like this
- my Dad told me ice rinks were defrosted every evening and turned into swimming pools— neil
- I used to think that a "pool shark" was an actual shark that lived in a swimming poolAnon
- I believed that the ladder on the back of a trailer/rv led up to a swimming pool.— marilese
- I used to believe that if you farted while swimming in the pool, it could propel you foward really fast.— Rick
- Up until I was in 3rd grade I believed my bathing cap is what kept me afloat in the swimming pool! Anon
- When I was a kid I used to think the "carpool lane" was an actual pool cars went swimming in— skeez