What's with the falling pianos?

Ok, so I've been getting a lot of questions from people about the name "Falling Piano Games". One person even asked me, "what do you have against pianos?" 
Just to be clear, I don't hate them at all! The name comes from those old cartoons like Tom & Jerry, Popeye, Roadrunner and so on, where for some unexplained reason, a piano would sometimes fall out of the sky and land on some cartoon character. I always thought that was hilarious, and I suppose the cartoon artists thought so too.

At one point, cartoon network even used a falling piano as part of its signature:

So there you have it. I love pianos. I don't push them out of buildings. But sometimes, they just fall from the sky, for no reason at all.