Where are pedestrians supposed to walk in Berkeley? What are laughingly referred to as sidewalks are a hazard for anyone on foot. Bicyclists use sidewalks as an extension of the street, joggers run pell mell down the busiest walk ways and skateboarders imperil all. Many of these fine folk who intrude on walking paths take umbrage to any attempt to dissuade them from violating the sanctity of the promenade. Bicyclists can be especially aggressive yet they are in actual violation of the law. How long will it be before cars traverse the sidewalk? At what point will sidewalks be used as landing strips by the airlines. On rainy days will there someday be boat traffic on our streets?