DEAR MISS MANNERS: How do I respond to a person who comments I have a good-looking grandson when he is my son?
GENTLE READER: Your son is complimenting your grandson? Or another person is mistaking your son for your grandson and complimenting him?
If the former, you may enthusiastically agree.
However, Miss Manners suspects that it is the latter, and that you are so offended by the notion that you might be a grandmother that your nouns and pronouns are having trouble agreeing.
Saying, "Oh, thank you. I hope that my future grandson will be as good-looking as my son is now" should clear up the social problem.