In 2009, he took part in “Acrobatic stunts”, a project of the Atelier “Adriano e Michele” within the San Colombano Fatebenefratelli Centre in Lambro where Favelli got to know the patients with mental health problems. Later, visiting the Alessi company, he became aware of a crate of “Juicy Salif” citrus squeezers missing a foot. They were the broken ones that would have gone to the foundry. He associated the condition of the objects to that of “his crazies”, the people he was working with, but also to all the times that he felt something was missing.