I'm sure you all know the story: Harry defeats Voldemort, marries Ginny, has kids, blah, blah, blah.
One day, Harry decides to learn how to swim. So he goes to the local public swimming pool and dives in. He sinks to the bottom. A fat kid dives in and lands on him. They both drown.
The fat kid goes to heaven and does whatever is his hearts delight.
Harry goes to hell. There he meets Voldemort, Snape, and Dumbledore!?
Regardless of everyone's expectations, Dumbledore, instead of going to heaven took the express elevator straight to the bottom simply because he pressed the wrong button.
Back to Harry. Surprised to see Dumbledore there he turns to Snape and asks why he's here. Snape tells the whole story with a disgusted, incredulous look on his face. At the end Harry says, "That's great…, I guess. But why are we all sitting on little chairs surrounding a stage upon which Dumbledore is standing on holding a microphone?"
Snape groans "Oh (censored)!"
Voldy puts his face? in his hand and says "#$%!? No more! Why, oh God, why?!" (not that he ever believed in Him)
Harry: "What?"
Dumbledore sings out: "TIME FOR A LITTLE COMEDY!!!"
Harry, Snape and Voldy spend eternity sitting in little chairs surrounding a stage upon which Dumbledore is standing, holding a microphone, telling horribly, hideous lame jokes.
THE END!