HERNANDO - Water continues to close in on homes in the Arrowhead neighborhood like a noose. It has already swallowed several. "Dead End" signs take on new meanings on roads where water chokes engines and traps drivers. Alligators and water moccasins have become unwanted neighbors. Dead fish float in a brown soup that overpowers the nostrils with sulfureous and sewage smells. "Everything imaginable is going on," said Mark Haggard, a Citrus County Sheriff's Office Community Affairs volunteer, who guards a neighborhood checkpoint that limits access to residents and emergency workers. Stress builds among the stubborn who refuse to abandon their...