I am an absolute magnet for such people. There is something about my face that says "Come, talk to me!" - possibly it is because I am usually staring at them in wide eyed wonder. Only recently have I begun to master the art of evasion while still managing to make a personal study of them.
Unfortunately, I was not swift enough to get a picture of the completely feral schizophrenic that lately haunts the bus stop at Town Hall Station as he bent over into an empty rubbish bin...partly because I am genuinely scared of him and do not ever want to be the object of his fearsome focus.
However, I was able to capture a (blurry) snap of this pungent character. He was draped in an American Flag with a New England Patriots T-Shirt looped over his neck. He also carried with him a small and impeccably clean crocheted blanket and entertained himself by showing a blank peice of paper to pretty girls. Somehow, I managed to avoid his attentions.