I don't care why they are there, I hate those episodes and if there is anything that will make me stop watching a show, it's campy filler crap. I don't care if the story is a light-hearted, fun, and kind of messed up anyways -- if all of a sudden I'm tossed an episode that is out of sync with everything else that I've been watching, I'll turn off the show and maybe come back to it in a few months. Or a year. Or never, if it wasn't that great of a show to begin with.