The Gemara related a story about how to give to the poor. A poor man lived in Mar Ukba's neighborhood, and every day Mar Ukba would put four zuz into the poor man's door socket. One day, the poor man thought that he would try to find out who did him this kindness. That day Mar Ukba came home from the house of study with his wife. When the poor man saw them moving the door to make their donation, the poor man went to greet them, but they fled and ran into a furnace from which the fire had just been swept. They did so because, as Mar Zutra bar Tobiah said in the name of Rav (or others say Rav Huna bar Bizna said in the name of Rabbi Simeon the Pious, and still others say Rabbi Johanan said in the name of Rabbi Simeon ben Yohai), it is better for a person to go into a fiery furnace than to shame a neighbor publicly. One can derive this from , where Tamar, who was subject to being burned for the adultery with which Judah had charged her, rather than publicly shame Judah with the facts of his complicity, sent Judah's possessions to him with the message, "By the man whose these are am I with child."