There is a code of behavior, she knew, whose seventh article (it may be) says that on occasions of this sort it behooves the woman, whatever her own occupation may be, to go to the help of the young man opposite so that he may expose and relieve the thigh bones, the ribs, of his vanity, of his urgent desire to assert himself; as indeed it is their duty, she reflected, in her old maidenly fairness, to help us, suppose the Tube were to burst into flames. Then, she thought, I should certainly expect Mr. Tansley to get me out. But how would it be, she thought, if neither of us did either of these things? So she sat there smiling.