Drusus: A man should keep himself clean, not have slaves do it.
    Tiberius: And how's he supposed to scrape his own back?
    Drusus: He gets his brother to do it.
    Tiberius: If he hasn't got a brother?
    Drusus: He gets his son.
    Tiberius: If he hasn't got a son?
    Drusus: Gets his friend.
    Tiberius: And if he hasn't got a friend?
    Drusus: Then he should go and hang himself.
    Tiberius: I've tried it. Better to have a slave scrape your back.