I've come to the conclusion that the Slitheen on Doctor Who and the Sarah Jane adventures are the Whoniverse equivalent of the Ferengi in the Trekverse. They might have originally been intended as threatening, but they're just really, really annoying.
Well, Greg and I are finally caught up on the revived Doctor Who seasons one through four, and, before I discuss them chronologically, I just have to get this off my chest regarding "Journey's End."