I thought that the postman sits inside the postbox and waits with his letter bag and packed lunch waiting for enough letters to be posted through and when his bag got full he'd call the other postman to let him out and then they'd swap over.
A childhood belief about in the street

others believed things like this
- I always thought that a little person lived inside each mailbox waiting to take my letter to its destination.— Anne
- When I was little I was afraid of vacum cleaners. I thought there was an old guy inside waiting to eat you.— Kittenz r kool
- Because "transmogrify" has "mog" in it, I thought it meant "to swap cats".Anon
- When my brother was 5 I use to swap a $5.00 note for lots of coins because he thought that I had more money— MATT NEWTON
- that there was a sharp toothed snail inside my nose, waiting to bite my finger off— diana
- I once believed that the walls and ceilings were completely jam packed with plumbing and wiring.— David