What emotion motivates Steve in his speech from Act II of "The Monsters Are Due on Maple Street"? "Go ahead, what's my wife said? Let's get it all out. Let's pick out every idosyncracy of every single man, woman, and child on the street. And then we might as well set up some kind of kangaroo court. How about a firing squad at dawn, Charlie, so we can get rid of all the suspects?"