Talk about holding a grudge. A retired elementary school teacher has pleaded guilty to stalking his former co-workers and bosses in Saratoga Springs, New York, over poor work reviews he received nearly 30 years ago. Authorities say Thomas Haberbush vandalized the property of former teachers, administrators and school board members in Saratoga for the past two years. Police say the targets of the retired teacher's ire found their driveways littered with roofing nails and their mailboxes and garage doors spattered with paint. The 72-year-old was charged with stalking, criminal tampering and criminal mischief. He last taught in the Saratoga school district in 1977.