She asked to explain why rain doesn't fall up.

On this point, Newton has a theory

but that stuff makes me weary.

I know aliens don't sprinkle water from space

to help their balance of payments race.

So I would conclude by logic

that rain must fall up before rain falls down.

Jim Norausky

http://www.poemhunter.com/poem/lunacy-train-2-why-rain-doesn-t-fall-up/