Billions of mice marauding through western NSW eating everything in their path. Not just eating things, but nibbling people in their beds and in their homes and cars. Farmers have lost a fortune in prized grain in the plague, which is causing economic havoc across western NSW. Those on the land and living in towns have had no relief from the waves of rodents, which have chewed through home walls, infested schools and devoured harvests following lean years of drought. For Warren farmer Ben Storer, whose town has been overrun by more than a billion mice, the costs have already blown out to hundreds of thousands of dollars.