Risk is an unavoidable "partner" of the life course for single home dwelling elderly, especially in the older age. The primary concerned person is not the only one to make decisions, his/her proxy and the community care professionals are also involved. Crisscrossing the point of view of these three types of actors with the same situation shows that risk is a notion which has to be problematized. Due to the large part of underlying life principles its understanding can't easily be objectified nor easy to reach by consensus. The three case studies presented suggest a dynamic grid of interpretation for an approach of risk concept.