The installation En Mitjons a la Plaça opened last saturday at Plaça de la Generalitat in Sant Boi de Llobregat. More than 1.000 children and youth 1.000 are involved in a collaborative action that aims to generate a cathartic expierence that will change the collective imagery of the square from a negative to a positive perception. The project makes part of a Research Program directed by Roger Paez (MEATS co/director). Toni Montes (MEATS co/director) and Manuela Valtchanova (MEATS faculty) have made part of the design team. MEATS 2019 students have also collaborated in the construction.