Synchronized stone-throwing

Palestinian youths throw stones at Israeli troops during an Israeli military operation in the West Bank village of Beita near Nablus February 21, 2008. REUTERS/Abed Omar Qusini (WEST BANK) Which is more likely: 1) Four Arab kids happen to throw stones at the exact same time so that the photographer can capture not only the kids but also the stones in mid-air, increasing his chances of winning an award. 2) The photographer shouting to the kids after getting them in optimal position, "Wahid, ithnan, thalatha (1-2-3) THROW!"