The black woman bounded up from her wheelchair, shut it down, and held the door open. Three Anglo men barged into the room, in denim overalls, boots, and battered straw hats. Their hair was dyed blue, their faces were streaked with nomad war paint, and they all wore sunglasses. One of them pushed a mighty wheelbarrow full of wires and flatscreens, and the two others carried large khaki-colored electrical toolboxes.