DEAR ABBY: Our son is married to a beautiful girl, “Debra.” Several years ago, while we were away on vacation, she entered our home without our consent. (Our son has a key to our house.) She took several expensive, very personal and sentimental items, and we have no idea what she did with them because she denies doing it. Abby, we have absolute proof it was her. Our son denied her involvement for a while until other suspicious things happened with some of their friends’ possessions. We all agree now it was Debra. Her mother sided with her until Debra ...