The gentle rocking of the train had guided Kibosh into a peaceful slumber, but the snoring of the man seated next to him jolted him awake.  Kibosh studied the man disdainfully.  He was fat; how he'd crammed himself into the narrow Amtrak seat was anybody's guess, and he was the caricature of the traveling salesman, with a rumpled plaid suit and a battered faux-leather briefcase resting awkwardly on his limited lap.  The man had eased off his cheap shoes, which explained the smell, and his...