Brooke Shields considered former President George H.W. Bush such a close "confidant" that she would ask him just about anything. Shields, 59, admitted that she considered the late politician her substitute grandfather during an event to support the Barbara Bush Foundation for Family Literacy's New York Celebration of Reading event at the Lotos Club. The actress and author, who will soon publish her new book, "Brooke Shields is Not Allowed to Get Old," even had a nickname for the 41st president of the United States. "I call him Papa Bush. I was dating somebody [whose father] was an ambassador in...