answer:I think the simplest description of humor is “deviation without harm.” Comedy is the unexpected, the unfathomable, the pattern outside of the usual pattern. The “without harm” part is key too. You can comically volley many things with tennis rackets, for instance: golf balls, beach balls, ben-wa balls, whatever. This is a deviation from an expected behavior, and is comedic on some level. But if you volley a baby, it isn’t funny. However, if you just got a chuckle out of the description of baby-racketing, that’s because no baby was volleyed, and the notion is so far out of whack with what we consider normal, that it can be funny just to say.