This research work deals with the concept of the way in which behavioral trends and practices are created in relation to space and its objects and how the objects themselves and the physical space produce behaviors and practices through their use. As a case study, the toilet is selected (the word "toilet" in greek refers to both the object – utensil and the place where it belongs, especially the public one). The feelings of pudency and aversion to the toilet and to the related functions are cultural constructions, and, as shown by the research, they were not always self-evident. The development of these feelings in the evolution of contemporary culture, as well as the historically recent imposition of the need for privacy, have determined the changes in toilet typology and infrastructure, even though today this is still a marginal subject of architectural design. Turning points for the toilet in western culture are the Roman period, the Victorian era and the invention of the modern toilet, while in other cultures we find that, historically and geographically, the values of privacy and purity have different content. Sociologically, separations and accessibility, especially in public toilets, apart from inequality, generate behaviors and tendencies in relation to gender identity, and determine how we perceive the space and the objects that define it, making the toilet, contrary to the prevailing trend, a subject of demanding design.