On the busews in Victoria there are signs that say "Please leave by rear doors." My Mum told me she believed that the signs were written by a man named Rear Doors who owned all the buses in order to transport his large family around. He was telling the other passengers to "please leave" his bus.
A childhood belief about buses

others believed things like this
- Having seen enough red octagonal STOP signs in my time, I used to look out for green circular GO signs.— Gary
- I believed that fairies lived in lamp posts - their front doors were the little holes where the key fits.— Janice
- i used to believe that my father always told us to close the doors to keep the giraffes out ... terrifying— lee
- I used to believe that the dust on top of doors was poisonous.— draconid
- I used to believe that the dust at the top of doors was highly poisonous and could kill you.Anon
- i used to believe that pools had underwater doors that sharks were going to swim out of.— marky