Heather Mills told a British television show last week that she is being targeted by hit men from an “underground movement” and has hidden details of the plot in a safe to be opened in case anything happens to her. Mills also said that she’s thought of killing herself, because of the onslaught of negative publicity she’s received since she split with former Beatle Paul McCartney. In response, McCartney has decided to seek full custody of the couple’s 4-year-old daughter, said the London News of the World. McCartney, a friend of his told the newspaper, is “deeply worried” that Mills has become unhinged and has become a danger to their daughter, Bea.