Gone Boy is an amazing episode. I have watched 16 other Christmas Specials, and there were 2 bad, 3 okay, 3 good, and 9 really good episodes. This episode falls in the really good category. Gone Boy is one of those really good modern Sideshow Bob episodes, like Funeral For a Fiend. Even though this is supposed to be a Christmas episode, this isn't really much of a Christmas episode. It's more of a winter episode. I like how The Simpsons are trying out new things, putting Sideshow Bob in a "Christmas" episode. This episode is really such a winner. If you haven't watched this episode, I strongly recommend you to watch it. In all, I give this great Christmas special a 8.1 out of 10.