Well I don't really know what to call this example. In my day, it was called the monkey and the hunter. It had to do with a hunter shooting a monkey. Nowadays people have come up with some pretty PC alternatives, like the monkey and the game warden. Holy mother of mercy, this is just some stupid totally unrealistic physics example for goodness sake, but it doesn't stop the publishers from getting nervous about getting sued! The monkey is an endangered species and is being protected from impending doom by being shot with a tranquilizer so as to be relocated in a more salubrious environment. Sure, sure, sounds pretty lame. Perhaps we could resuscitate the idea of the monkey getting shot by saying it was carrying ebola and was about to cause the deaths of many many other monkeys. Anyway since I don't want to deal with all this, I'll call this person Z.
OK so Z is in the jungle and spies the monkey dangling from the branch of a tree laughing at Z. The monkey is a clever little creature, and Z has quite a slow gun. It could even be a blow gun if Z was a native of the jungle and was simply interested in eating the monkey as it was a traditional cultural practice. So the instant the trigger is pulled, the monkey drops from the branch, in free fall towards the ground.
So the question is, where should Z aim? Above, below, or at that laughing monkey?