Squatters took over this Uniondale, Long Island house, changing the locks and producing fake lease papers. They were caught by the owner who came to check on the property. He called the cops and a man and a woman were arrested. Cops say this happens a lot on Long Island. Even people leaving for vacation come home sometimes to find people living in their houses. Cops say you should register your house with them when you leave town so you can prove you're the legal occupant when you come back. Just in case.