inhabitants customarily did not work, one could not. One who traveled from a place where they did work to a place where they did not work, or from a place where they did not work to a place where they did work, was bound by the stringencies of either. The Mishnah taught that a person should not deviate from the established customs of a place because of the disagreement to which such conduct could lead. Rabbi Ḥanina, the adjunct head of the priests, taught that during all the days of the priests, they never refrained from burning sacrificial meat (terumah) that had become impure by a secondary source of impurity along with sacrificial meat that had become impure by a primary source of impurity, even though it would add impurity to impurity. Rabbi Akiva added that during all the days of the priests, they never refrained from lighting oil that had become unfit by contact with a person who had immersed that day for purification but who still needed to wait for nightfall to become fully pure (a tevul yom) in a lamp that had become impure by one who had become impure by a corpse, even though by so doing they would add impurity to impurity. Based on those teachings, Rabbi Meir argued that on Passover, priests could burn sacrificial meat that was pure but included leavening (chamets), together with sacrificial meat that was impure. Rabbi Jose replied that such a case was not analogous. Even Rabbi Eliezer and Rabbi Joshua conceded that each was burned separately. They did disagree, however, about sacrificial meat whose status of purity was in question and impure sacrificial meat, where Rabbi Eliezer taught that each had to be burned separately, whereas Rabbi Joshua taught that both of them could be burned together. The Sages reported that in Judah, they would work on the eve of Passover until noon, while in the Galilee they did not work at all that day. On the evening of the fourteenth of Nisan in places like the Galilee, the School of Shammai forbad work, but the School of Hillel allowed it until sunrise. Rabbi Meir taught that on the fourteenth, one could finish work that one had started before the fourteenth, but one could not start work on the fourteenth even if one could finish it that day. The Sages taught that tailors, barbers, and launderers could work