DEAR ABBY: I don’t know what to do about my 18-year-old niece. She walks around the house in her underwear. She’s been doing it for the last two or three years. It wouldn’t matter, I suppose, if it were just in front of immediate family living there, but she also does it in front of workmen, the cleaning women, answering the door, going out to get the mail, etc. I’m really disgusted. I spoke to my brother (her father) briefly about it. His response was, “She lives here.” Is there anything I can do or say to get her to keep herself a little better covered? -- MODEST IN MASSACHUSETTS