In February 2010, about one hundred Haitians remained queued at a suspended food-distribution site in Pétionville, outside Port-au-Prince. After UN staff had previously been overwhelmed by survivors, agencies introduced coloured, stamped coupons specifying where and on which day food could be collected. At this site the valid coupons were green, but counterfeit yellow vouchers appeared, prompting the shutdown. People continued waiting behind steel bars and asking for food. Nearly a month after the earthquake, more than 500,000 people were living in makeshift camps around the capital. The coupon was designed to turn scarcity into an ordered schedule by place and date. Once counterfeit tickets entered the system, that order stopped for everyone—including people holding the correct document.