79. And if these parts are exposed to view by chance, modesty is violated; but if on purpose, it is reckoned as utter shamelessness. Wherefore Ham, Noah’s son, brought disgrace upon himself; for he laughed when he saw his father naked, but they who covered their father received the gift of a blessing. Gen. ix. 22. For which cause, also, it was an ancient custom in Rome, and in many other states as well, that grown-up sons should not bathe with their parents, or sons-in-law with their fathers-in-law, Cic. de Off. I. 35, § 129. in order that the great duty of reverence for parents should not be weakened. Many, however, cover themselves so far as they can in the baths, so that, where the whole body is bare, that part of it at least may be covered.