John meandered through the men and machines and floated over to a bulky man, with jet black hair, who was busy cutting wires before stripping them and splicing the bare copper ends together.  His callused hands repeated the task for several minutes on an assortment of different colored wires.  He acted with the skill and precision of someone with an intimate knowledge of the machine.  He severed one more green wire, and connected it to a black lead.  The lights in the room slowly flickered on.  The large man stood back and took a long sigh.  He finally noticed the new arrival.  He merely shook his head at John.