Yet the Letters of Pliny, with all their charity and tranquil optimism, reveal now and then a darker side of household slavery. A man of praetorian rank named Largius Macedo, who forgot, or perhaps too vividly remembered, his own servile origin, was known as a cruel and haughty master. While he was enjoying the bath in his Formian villa, he was suddenly surrounded by a throng of angry slaves who, with every expression of hatred and loathing, inflicted on him such injuries that he was left for dead on the glowing pavement. He seemed, or pretended for a while, to be dead. A few who remained faithful took up the apparently lifeless corpse, amid the shrieks of his concubines, and bore him into the Frigidarium. The coolness and the clamour recalled him from his swoon. The would-be murderers meanwhile had fled, but many of them were caught in the end, and the outrage was sternly avenged.(1046) In another letter, Pliny tells the tale of the mysterious disappearance of one Metilius Crispus, a citizen of Como, for whom Pliny had obtained equestrian rank, and made him a gift of the required HS.400,000. Metilius set out on a journey and was never heard of again.(1047) It is significant that of the slaves who attended him no one ever reappeared. Amid such perils, says Pliny, do we masters live, and no kindness can relieve us from alarm. Seneca remarks that the master’s life is continually at the mercy of his slaves.(1048) And the cruel stringency of legislation shows how real was the peril. Pliny was only an infant in the evil days when suicide was the one refuge from tyranny, when the lancet so often opened the way to “eternal freedom.” Yet, even in his later years, men not unfrequently escaped from intolerable calamity or incurable disease by a voluntary death.(1049) The morality of suicide was long a debated question. There were strict moralists who maintained that it was never lawful to quit one’s post before the final signal to retreat. Men like Seneca regarded it as a question to be determined by circumstances and motives.(1050) He would not palliate wild, impetuous self-murder, without a justifying cause. On the other hand, there might be, especially under a monster like Nero, cases in which it were mere folly not to choose an easy emancipation rather than a certain death of torture and ignominy. Eternal law, which has assigned a single entrance to this life, has mercifully allowed us many exits. Any death is preferable to servitude.(1051) So, in the case of disease and old age, it is merely a question whether the remainder of life is worth living. If the mental powers are falling into irreparable decay, if the malady is tormenting and incurable, Seneca would permit the rational soul to quit abruptly its crumbling tenement, not to escape pain or weakness, but to shake off the slavery of a worthless life.(1052)