A Texas family were shocked to discover last week that their 5-year-old Leonberger named Sid they thought was put down six months ago was being secretly kept by a veterinarian and tapped for blood transfusions. Marian Harris, of Aledo, says that last October, she gave long-time veterinarian Dr Lou Tierce permission to euthanize Sid after the doctor told her that the pup was suffering from a congenital spinal disorder. But last Monday, Mrs Harris got a call from a former employee at the animal clinic telling her that her dog has been kept alive in a cage for the past...