Well, the story is straightforward enough:
Photographer attacked by subject
"An amateur photographer's candid picture snapped on a London Underground escalator could lead police to the man who attacked him seconds later. The black and white image of a man climbing escalators at Waterloo railway station was one of several taken by the city street scene photographer. But after being unexpectedly captured on film the subject turned violent, attempting to grab the camera and punching the photographer in the face."The observation? The advertisements at the bottom of the page: one says "Become a Photographer" and the next says "Career in Photography."