Breitbart reports Hillary Clinton once threw a Bible at the back of a Secret Service agent’s head, part of a pattern of unhinged rage that the now-presumptive Democratic nominee exhibited, as exposed for the first time in former Secret Service agent Gary Byrne’s grueling insider account of Hillary Rodham Clinton.Byrne’s forthcoming book Crisis of Character—in which he details how the Clintons operated during his time in the U.S. Secret Service, where he protected the first couple for eight years in the White House in the 1990s. During three of those years, he was posted right outside the Oval Office. The book comes out next week.“The First Lady had a different sort of liveliness,” Byrne writes in an excerpt obtained exclusively by Breitbart News. “She once threw a Bible at an agent on her detail, hitting him in the back of the head. He bluntly let her know it wasn’t acceptable. He told me that story himself.”Byrne goes on to report that for Secret Service agents, being assigned to Hillary Clinton’s detail “was a form of punishment handed down by passive-aggressive middle management.”This pattern of rage from Clinton was exhibited, Byrne wrote in another part of the book, on a regular basis the more “at home she felt in the White House,” as Hillary “vented on everyone” and “it got worse” as time went on.