What's Really Inside a Bludger?

I was hanging out with a few of my long-time friends over the weekend watching various "happy" clips from movies. Fun thing to do, by the way. My friend has several hundred movies and we each chose a few that had happy moments. They could either be funny, romantic, whatever. Then we showed movie clips to each other and just laughed. The ones I chose were: Fellowship of the Ring - the hobbits' drinking song, The Three Amigos - my little buttercup routine, While You Were Sleeping - the random kid falling off his bike, Johnny English - recording of him dancing to ABBA song, and Harry Potter and the Sorcerer's Stone - the explanation of quidditch. Now, with the last one I mentioned, one of my friends reminded me of our explanation of bludgers that we came up with many years ago. If you really sit down and think about it, what makes those killer balls fly around on their own and make that irritated, angry noise? Explanation: There is a little chiuaua inside each and every one. Really. Can't you picture this tiny chiuaua just running around inside it. Every time the ball is set loose it attacks innocent players. It's always doing it's "Aararraraarrrar." When it's hit, it comes back to take its revenge and its irritated growling gets louder. It moves fast and at chaotic angles. It makes sense, right? Check it out for yourselves. Watch the first Harry Potter movie when Wood is explaining quidditch to Harry.