Day Z ( Hardcore server). Close encounter at NEAF

Lone wolfing it at NE airfield scoping out the area when I had a visit from a guy in a blue checked shirt. I decided to mess with him a bit and give him a little fright through his binoculars. Was wondering why he was so slow to react and then it suddenly all made sense. I managed to get away unscathed and hid in a bush a few miles away.