Science of Funny

"Peter McGraw is an associate professor at the University of Colorado Boulder and the director of the Humor Research Lab (aka HuRL). He and his colleague Caleb Warren have developed a theory that explains why it’s so funny when people fall down. Their benign violation theory proposes that something is funny if three conditions are met. First, ordinary life is somehow thrown off balance. They call this a violation – “anything that threatens the way you think the world ought to be.”  Second, this violation is benign. No one gets hurt. Finally, these first two conditions must happen simultaneously..."

Why is falling so funny?