Does holding a camera provide license to be in a place perhaps where one should not be? I have uploaded one example. This person strolled into the "action" area of a reenactment event. Official photographers wore uniforms and carried old Graflex , old small bodied 35mms and a discrete modern camera, blending well into the scenes. Maybe this was a newspaper photog. Anyway, the "body" of this out of place looking photographer got in the way of some shots and took away from the "reality" of the event, albeit in only a small way. Do you have a set of personal rules? Make a judgment call on the spot? Wish for a different lens?