Paul hit the nail on the head. I think this image portrays very well the voyeuristic aspect of being a photographer. Very nicely done, Daz.
A question occurred to me yesterday, and this image made me think about it again,...it appears that you are using the little screen on the back of your camera to frame the shot. Of course, that is a very common manner of framing shots now, what with all the little digi point and shoots around. Do you think people are less "on guard" when a camera is not lifted to the eye for framing?