You come around a bend in the trail and see a light in the distance. Someone is approaching. You can't stop yourself from hoping there's nothing... supernatural about the dark figure. For a moment, you are frozen in place, but then you quickly step from the path and into the concealing darkness behind a towering tree.
Even though you have permission to be in the preserve, you think it's probably safer to remain hidden until the unknown figure has passed. Who knows if he or she is friend or foe?
You decide to reveal yourself. You might be spotted anyway, and how would you explain why you were cowering behind this tree?