When i was a kid, i used to believe that the tress waving their branches was what caused the wind, because it was never windy unless the trees were waving their branches :)
A childhood belief about plants

others believed things like this
- I used to think that the wind was caused by all the trees waving about.— dismal dunc
- That the trees made the wind by waving— diyjoe.com
- I used to believe that wind was created by the trees, that it came out of the ends of their branches. — STeve
- I used to believe that, by moving their branches from one side to another, trees made wind.— Pilar
- I used to think that the tree branches moving was making the wind, not the wind making the tree branches move.— Jenny
- I used to believe that the wind was caused by trees so you could stop the wind by getting rid of trees.— Nira