Ventriloquist Jeff Dunham is never alone. Even though he opens his current world-wide concert series 'Disorderly Conduct' with a 20-minute hilarious solo stand-up comedy routine, there are dead people behind him, held captive in little black cases ready to spring into action. Okay, one dead 'person.' Achmed, the Dead Terrorist -- one of his most popular dummies whose most famous line: 'Silence! I kill you!' never really gets old.