The convoy of cars bearing the black al-Qaida flag came at high speed, and the manager of the modest grocery store thought he was about to get robbed. Mohamed Djitteye rushed to lock his till and cowered behind the counter. He was dumbfounded when instead, the al-Qaida commander gently opened the grocery's glass door and asked for a pot of mustard. Then he asked for a receipt. Confused and scared, Djitteye didn't understand. So the jihadist repeated his request. Could he please have a receipt for the $1.60 purchase?