I see it a lot in Williamsburg, but that's because Williamsburg has a trash problem.
Don't let your guard down. One day you're going to not see it, and then you'll feel it. And then you'll be that guy who makes a poop trail going to the side of the sidewalk, and then you'll be that guy who makes long streaks of poop in an effort to get it off your shoe.
All the while people who pass by will be thinking to themselves "ha, dude just stepped in shit. Sucks."