The few times we've seen pier runners, they have been either carrying shopping bags or weaving as they "walked". The two port we've seen this the most is Cozumel and Nassau. We haven't actually seen anyone left but have heard rumors a couple of times. The only time we've been up against boarding time was a couple of ship sponsored excursions in Canada. Otherwise, we are always back to the ship at least an hour or two before all aboard.