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Barnum: "Why are the clouds so dark?"
The Strong Man: "Well, they get dark before it rains. It is about to rain."
Barnum: "Daddy? Is there pee in rain?"
The Strong Man: "No. There isn't any pee in rain. It is just water."
Barnum: "Where does rain come from? How do the clouds get rain? When I am in the bathtub and I pull the drain then the water goes out and into the clouds?"
The Strong Man: "Well, yes. It is kinda like that."
Barnum: "OK. Then there IS pee in rain."