To those who cannot understand the difference between passing someone on the street and a picture, here is what I wrote on a different thread some while ago:
There is absolutely no comparison between passing someone on the street and seeing their picture on your page. Besides the obvious fact that on the street the person is part of the general scenery and you are looking where you are stepping, on a screen your eye is focused on the object in front of you. That is the equivalent to walking up to a woman in the street and staring her straight in the face.
The same applies to any picture. If you want to compare the street to a picture, compare it to a picture of a street, or a picture of several people.