I appreciate whistling classic tunes to put others at ease. His point of view is very well played: "...everyone seems to sense that a mugger wouldn't warble bright, sunny selections." I regret it though, why should he be forced to make others feel comfortable around him? He's just another man waiting for the bus or going to work. I understand you use them as preventative measures since it's much easier to get someone to relax right from the start than to go back after they get scared. But the simple fact that he feels the need to do so is