There was no single reason for people leaving. We knew that all public services had stopped to the south and to the east, and that this state of affairs was spreading our way. We knew that everyone had left that part of the country, except for bands of people, mostly youngsters, who lived on what they could find: crops left ungathered in the fields, animals that had escaped slaughter before everything had broken down. These bands, or gangs, had not, to begin with, been particularly violent or harmful to the few people who had refused to leave. They even 'co-operated with the forces of law and order', as the newscasts put it. Then, as food became more scarce, and whatever the danger was that had first set populations on the move away from it came closer, the gangs became dangerous, and when they passed through the suburbs of our city, people ran inside and stayed out of their way.
This had been going on for months. Warnings, first by rumour, then through the news-sources, that gangs were moving through such and such an area where the inhabitants had gone behind their locked doors until the danger had passed; that new gangs were approaching this or that area, where people would be well-advised to look after their lives, and their property; that another district, formerly dangerous, was now safe again — such alarms were part of our lives.
Where I lived, on the north side of the city, the streets were not roadways for the migrating gangs until a long time after the southern suburbs had become accustomed to them.