Sir Paul McCartney has been given an early Christmas present by British TV producer PAUL DUDDRIDGE - a copy of his book EVER DATED A PSYCHO?. MCCartney is preparing for his first Christmas without estranged wife Heather Mills. Duddridge's book is collection of true-life stories from men and women who have been in relationships with mentally unstable people. Duddridge says, "My publishers posted it. I hope MACca enjoys it. "But I can't imagine what possible use he would have for the book, or why anyone thinks he would find it helpful or particularly relevant."