I discovered a new type of cooperation, or call it anti-cooperation...:
the "deixa-andar, mas-que-está-mal-está!" type.
It is defined by an official "just let it be" stance, associated with the groaning "it's awful anyways..." when you are not listening. It's the most awful thing you can get, because apparently everything is fine, or at least reasonable, and you cannot get hold of the problem and tackle it.