My uncle led me to believe that in autumn, fairies would take shelter from rain by using fallen leaves. When it stopped raining they would leave money under the leaves as tokens of appreciation.
A childhood belief about fairies

others believed things like this
- When I was little I used to think that my uncle lived in a bus shelter.— tigga
- I used to think that leaves fell from the sky.— Chrono
- All flowers had exactly five petals and two leaves.— MD Caruso
- 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