Used to work janitorial for a building in Williamsburg, Brooklyn. In over a decade on the job, putting garbage to the curb thrice a week, and clearing detritus (wind-blown, poss. from some other recycling bin or pile), litter (evidently from local sources), unbagged dog shit, and abandoned, chained up, dismembered bike frames and junk filled carts, from over half a block of sidewalk, maybe saw a discarded latex glove once.
Far more common were water bottles full of piss.