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Humanities and social sciences use the word situation to point out the evolving network of intertwined relationships and transformative interactions that an entity maintains with a heterogeneous assemblage of abiotic, biotic, and anthropogenic elements. Without claiming to be exhaustive, this article aims to identify some milestones that help us to introduce a theoretical framework. As geographer, we use it to analyze some problematic situations. Our influences come not only from English-language writings associated with pragmatism in philosophy (Dewey and Mead) and interactionism in sociology (Becker, Blumer, and Goffman), but also from the insights of existentialism (Marcel, Sartre, and Jaspers), Situationist International (Debord), and the philosophy of instauration (Souriau). For each of these milestones, we use a case study based on a geography of water to show how theoretical principles are embodied and interwoven in specific situations. The overlap of these different approaches can help geographers to deal with problematic situations in a more human, more-than-human, and more-than-representational ways.