[Reactions of social workers in a mental health day center and the avoidance of institutionalization of individual defense mechanisms].

The author attempts to describe the different strengths that emerge from the role of the supervisor (clinic) in a community organization in relation to two aspects: the maintaining of the defining characteristics of the notion of "alternative" and the dynamic understanding of the social worker-user relationship. After a review of how a day centre operates, the author describes the individual and collective "defense mechanisms" that are used by social workers to alleviate the impact of the user's baffling behaviour on their personality. The author follows by showing that failure to use these defense mechanisms can lead to burnout for the social worker, while certain forms of collective defense mechanisms can prompt this alternative care system to institutionalize itself from within.