A Lebanese designer named Salim Kadi invented a bulletproof keffiyeh. The keffiyeh a headscarf visually similar to the balaclava issued to American military troops, or the shemaghs that deployed personnel would wear under helmets or around their shoulders and tucked into flak jackets.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.