DEAR ABBY: I have a 59-year-old brother-in-law who has always been a “proud bachelor.” He isn’t a rich, handsome, George Clooney-type bachelor, but a hand-to-mouth, burping, uncouth “Shallow Hal” kind of bachelor. He befriended a woman with four daughters, paying most of his attention to one of the daughters. He would take the woman and her girls to dinner, and take the daughters shopping without the mother. Fast forward eight years. He wants to take the one daughter on a trip to Hawaii. And he has been telling everyone she is now 18 (the girl is still in high school). Should I ...