My mom often told me that we would do something in a specific way because "it was better in the long run." Because we always did things that were "better in the long run", I thought we were constantly in the mode of preparing for this "Long Run", the way a runner prepares for a race, and that at some unidentified point in the near future, life as we knew it would cease and we would find ourselves at the start of a foot race, with a huge banner at the starting line that said "The Long Run". But I could never quite reconcile how doing the specific "better" action would prepare us for this really long run as these "better" actions were never running related.
A childhood belief about general

others believed things like this
- I used to think a female daddy-long-legs was called a "mummy-long-legs".Anon
- I used to believe that if i watched TV for too long, my eyes would turn square. As told to me by my mother.— Alex
- My dad told my young daughters that molasses comes from mole asses. I don't know how long they— Monica
- I thought my brain would explode if it was in the sun too long— Heather
- I thought gay people were old men with very long beards.Anon
- We told our little sister that she had a long bushy tail and she fully believed us for ages!!Anon