When the fly drops 5 inches...

There was this fly hovering over a river. 

A fish under the water saw the fly and thought to himself, "hmm...in a minute...that fly is going to drop 5 inches...and i'm going to be ready for him when he does."

A bear from the woods saw the whole situation, and he said, "Ah...i know what's going to happen...that fly is going to drop 5 inches...fish is going to jump...and i'm going to eat that fish."

A hunter from behind a tree smiles to himself, seeing the situation, and thinks, "Ha...this is perfect...fly drops 5 inches...fish jumps and gets the fly...bear eats the fish...and i kill the bear."

Well, a mouse is standing at the man's feet, eyeing a piece of cheese that is about to fall out of the man's pocket.  He saw the situation and said, "That fly is going to drop 5 inches...the fish will jump for the fly...the bear will kill the fish...the hunter will kill the bear...and when he shoots that cheese will fall out of his pocket...and i'm gonna be ready to go and get it."

There was a cat a little ways off.  He saw what was going on, and he thought to himself, "Hehe...that fly is going to drop 5 inches...the fish will jump for the fly...the bear will eat the fish...the hunter will shoot the bear...the mouse will get the cheese...and I...am going to eat that mouse."

Well, the fly dropped 5 inches.  

Everything happened.  The fish jumped for the fly, the bear ate the fish, the hunter killed the bear...and the mouse began to eat the cheese, when the cat pounced on him.  In the midst of their combat, the mouse and cat went rolling down into the river.

What's the moral of this story?

When the fly drops 5 inches...the pussy gets wet.