Some wear their philanthropic largesse as visibly as the Great Wall of China from outer space. Others prefer a more discreet badge. "I only found out about this three days ago," said Lucinda Lovitt early Tuesday morning. Lovitt is the executive director of the California Retirement Management Account (CARMA), the non-profit founded 15 years ago to raise money for the state's fleet of retired racehorses. Lovitt's weekend discovery? That CARMA was one of a handful of racehorse rehoming and animal rescue organizations bequeathed--and bequeathed without their prior knowledge--a sizeable sum...