This sad individual needs a more fulfilling life. I guess he/she feels real proud about the attention (?) they get or some satisfaction that they are causing a disturbance.
But at least from my perspective (and maybe from others) - I'm thinkin' - what a big a-hole.
Someday, you may look back and realize that what you were doing made no difference in the big scheme of things. However, I think the odds of that is low, however not as low as a human being you are.
I figure the odds be fifty-fifty I just might have something to say. FZ