DETROIT -- Livid over troubling systemic issues with their city's water billing system, about 50 residents of Highland Park, Mich., crowded into a city council meeting Tuesday night to voice their anger and concern. They're upset about being hit with hundreds and even thousands of dollars in cumulative water bills -- after receiving no notice for almost a year."I know they ripping us off because I paid $100 a month and they still sent me a $3,000 bill.