When I first snapped this picture, I assumed that I was looking at the results of vandalism or an an accident, but once I uploaded it and got a better looks, it seems way too organized to be a random act. Vandals typically do not reattach the bolts.
On a final amusing note, shortly after I posted that picture on Flickr, I received an invitation to add it to the "urinals" group. I guess I have been on-line long enough to stop begin surprised that such a group even exists. I approved the invitation and, er, tossed my picture into the pot.