"And Haman told them of the glory of his riches and the multitude of his children" (Esth. v. 11). And how many children were there? Rav said thirty; ten had died, ten were hanged, and ten went about begging from door to door. The Rabbis say, "Those that went about begging from door to door were seventy; for it is written (1 Sam. ii. 5), 'They that were full have hired themselves for bread.'" _Meggillah_, fol. 15, col. 2. When Rabbi Chanena bar Pappa was about to die, the Angel of Death was told to go and render him some friendly service. He accordingly went and made himself known to him. The Rabbi requested him to leave him for thirty days, until he had repeated what he had been learning; for it is said, "Blessed is he who comes here with his studies in his hand." He accordingly left, and at the expiration of thirty days returned to him. The Rabbi then asked to be shown his place in Paradise, and the Angel of Death consented to show him while life was still in him. Then said the Rabbi, "Lend me thy sword, lest thou surprise me on the road and cheat me of my expectation." To this the Angel of Death said, "Dost thou mean to serve me as thy friend Rabbi Yoshua did?" and he declined to intrust the sword to the Rabbi. _Kethuboth_, fol. 77, col. 2. If a man says to a woman, "Thou art betrothed to me after thirty days," and in the interim another comes and betroths her, she is the second suitor's. _Kiddushin_, fol. 58, col 2. If one finds a scroll, he may peruse it once in thirty days, but he must not teach out of it, nor may another join him in reading it; if he does not know how to read, he must unroll it. If a garment be found, it should be shaken and spread out once in thirty days, for its own sake (to preserve it), but not for display. Silver and copper articles should be used to take care of them, but not for the sake of ornament. Gold and glass vessels he should not meddle with--till the coming of Elijah. _Bava Metzia_, fol. 29, col. 2. Rabbi Zira so inured his body (to endurance) that the fire of Gehenna had no power over it. Every thirty days he experimented on himself, ascending a fiery furnace, and finally sitting down in the midst of it without being affected by the fire. One day, however, as the Rabbis fixed their eyes upon him, his hips became singed, and from that day onward he was noted in Jewry as the little man with the singed hips. Ibid., fol. 85, col. 1.