"Where do ducks come from?"
"But I heard they really can't fly."
"Well he probably fell from the sky."
"What keeps them from flopping onto their heads when they hit the ground?"
"The clouds silly. They slow them down a lot and then they use their wings to gracefully land on the ground."
"Well, how do they get into the sky in the first place?"
"They just do everything I just said but backward."
"That doesn't make any sense."
"Yah, I know."