Actually, the Sniper's sense of humor frightened Amy more than anything else. The parody of Carla's poem had been witty, the rudeness of Marvy's critique outlandish, and she was still, for some reason, focused on that "youse" in the Sniper's counterfeit email. "Youse" was like a spectral elbow to Amy's ribs. Dangerous, malevolent people should not be amusing. In order to be humorous, you had to have perspective, to be able to stand outside yourself and your own needs and grudges and fears and see yourself for the puny ludicrous creature you really are. How could somebody do that and still imagine himself entitled to harry, to wound, to kill?