Although not very numerous (less than 20,000 in France) and having few demands, the community that has been referred to in recent years as the “Roma” embody an intolerable form of urbanity: substandard housing, economic activities based on exploration in the public space, alleged lack of hygiene, etc. All of these are negative characteristics of a “population” that clearly seems out of place. Based on an ethnography of various so-called “Roma” groups in the Paris area, this article highlights how these families nevertheless ensure a “right to the city” when the city does its best to get rid of this “urban waste” (men and objects), while never ceasing to produce new ones.