Suzi and I were walking after dark on a tree lined sidewalk to a neighborhood market. An elderly woman approached. Suddenly she lost her footing and fell directly at my feet, almost prone. Pretty quickly she gathered her wits and extended her arm so I could help her up. I looked at her intently to determine if she were injured or unsteady. She walked away. I though we should have walked with her a bit to make sure she was ok. Suzi noticed that her other arm was missing.