Had an experience just the other night where a fellow in a wheelchair was crossing a rural road to get to his mail box. The chair was dark, his clothes were dark and it was rainy and dusk. The low profile of the chair against the roadside hedges didn't help either. I did see him in time but some sort of light or reflector would have kept that lump in my throat from jumping up. Almost stopped to give a him flashing LED wand I carry in the glove compartment but he gave me the one finger salute instead. I felt bad about scaring him but he could have made it easier for drivers to see him.