My brother once noted some trees across the street were losing leaves. My babysitter and I then started telling him that ghosts lived in the the trees, and caused them to lose their leaves. She said they'd come out on Halloween, looking like trickortreaters, and then sluuuurrp back into the trees. He was on the verge of tears before I started telling him about the goblins in the fridge...
A childhood belief about ghosts

others believed things like this
- When I was a kid I thought that the wind was caused by the trees fanning their leaves...— GDP
- I believed that leaves on trees only became individual when you you close to them, and then I got glasses.— nola
- Trees grew leaves as camouflage so birds would`nd nest in them. Don`t ask.— DaWind
- When I was about seven, I was utterly convinced that chickens had leaves and trees had feathers.— Confused
- when I was very young, I used to beleive that the leaves rustling in the trees made the wind blow— Ellona
- I used to believe that the wind was caused by trees so you could stop the wind by getting rid of trees.— Nira