I have found mostly good samaritan action. Yesterday my red flashing taillight went flying off my bike, batteries and everything scattered, on a steep downhill (so everything went everywhere.) I set my bike down by the side of the road, walked back up (klunck, klunck, klunck) and used my headlamp to look for all the parts (amazingly, the thing was not broken - it is a Cateye and I will buy this brand again). As I searched around, three cars came down the hill and all of them slowed and asked if I was okay. Granted it was dark and may have looked odd with me wandering around in cleats and a headlamp. But it was still nice of them to stop.