Unions have provided free portable toilets to Occupy D.C., but Occupiers still choose to publicly expose themselves and defecate in the street.
Not only do Freedom Plaza and McPherson Square reek, which they never did when the homeless lived there, I've lived here for a decade and never seen a homeless person drop pants and defecate on the sidewalk in broad daylight.
Our homeless friends here in D.C. are generally kind and polite, and they are officially cleaner and more civilized than the Occupy movement.