On Sunday afternoon, approximately 5:00 to 5:30 PM, a Segway tour group was at the end of Long Wharf. While there, the tourists were encouraged to ride around the area in random circles, often chasing each other about. Toward the end, the guide encouraged the tourists to race each other, even stating "On your mark, get set, go". A few moments after the race started, one of the tourists went head over heels over his Segway, landing on the pavement. While he appeared uninjured, he did require a few minutes to gather himself. Why are the Segway tour operators allowed to use Long Wharf as a race course, especially since that area is also a magnet for many pedestrians. This seems to go well beyond giving a tour of the area and is a hazard to others using the area.