DEAR MISS MANNERS: I am a 22-year-old college student. At the beginning of a recent class, my professor told the class (of 12 students) that before we began, someone had a special announcement. Another student pulled out a gift bag, and presented me with a new coat that the entire class had pitched in to buy for me. GENTLE READER: We have to suppose that they meant well, but this is what Miss Manners would call selfish charity. Miss Manners suggests something like this:“I believe in charity, and I recognize your charitable motive.