I was convinced by my older cousin that if I put moss in the letterbox then when you had enough the mailman paid you $10.00 We were 8 and 6 at the time.
Needless to say my mum always wanted to know why some idiot kept putting moss in the letterbox.
A childhood belief about plants

others believed things like this
- When I was 5, I thought cats were spawned from moss, since moss was so soft. Made sense to me.Anon
- I used to think that the word mailman came from the fact that the mailman was a male. I don't really know why.— Andi
- I thought the word mailman was male man and it seemed dumb to me as aren't all men male?— andalite
- My das convinced me that the birds which sat on our trees wanted to steal them. — belle
- When my dad was little his older siblings convinced him that there were flocks of flying turtles.— Anonymous
- My older sister had me convinced that noodles grew on trees, but that rice was man-made...— Trusting little brother