In the initial stages of German occupation, these measures are relatively small - buying food on the black market, for example - and strengthened by strong family ties, a unified Jewish identity, and even altruism. When Vladek arrives home from the prisoner of war camp, for example, an old business acquaintance, Mr. Ilzecki , helps him earn money and acquire the proper work papers that will allow him to walk the streets in relative safety. As the situation continues to deteriorate, however, Vladek, his family, and his friends are forced to resort to increasingly extreme measures in order to survive. Here, the bonds of Jewish identity begin to break under the pressing instinct to survive. The first sign of this comes in the form of Jews serving on a Jewish Police force, like the ones who came to Vladek's apartment to escort his wife's grandparents to the concentration camps. According to Vladek, these Jews thought that by helping the Nazis in taking some of the Jews, perhaps they could help save others - and of course they could also save themselves. Soon after, the bonds of family also begin to break, as illustrated by Vladek's cousin Haskel's refusal to save them from transport to Auschwitz without some form of payment. Though Haskel eventually does help Vladek and Anja escape, he ultimately decides not to help Anja's parents, and they are sent off to their deaths.