Otherwise, you end up praising them in a way that makes it quite clear you don't think real literary standards apply. "JK Rowling describes her characters with a psychological subtlety rare in children's books, and even in much adult fiction," says Lurie, giving as her instance the way that in Harry Potter and the Chamber of Secrets, Dobby, the house-elf, "hits himself over the head with the nearest blunt object, repeating 'Bad Dobby'!"