To be honest... I don't see the humor. For one, I've never imagined Knuckles as a sociopath, and for two... I don't really find anything funny about all the characters exploding. Maybe if you make it a bit more ironic, and descriptive. I also really think you should add the "violence" tag to this chapter, and to the general story description. Even though you didn't give much detail, it's still a very graphic, violent image. Also, your sentence structure seems a little work. Nice characterization in the first paragraph, though. You do, if nothing else, establish now bored he is.