I wasn't sure what to expect after the blurby warning from the mods, but I wasn't confused in the least. I found it highly entertaining. Harry's commentary on Dan's odd music appreciation was hilarious, and all of the RL references (the book with a horse on it *giggles*) we well done.
And I love Alan Rickman as much as anyone else, but I'm so glad you pointed out that he's about twenty-five or more years older than Snape should be!