Truly ancient form of folk arts, circulated among the Indians of Bolivia. Women Aymara Indian nation furiously pounding each other in the ancient and bloody ritual duel "Tink" (collision). This tradition is unable to stop even the authorities, so that the police did not intervene in the fighting, and even act as a referee. In ritual battles Tink converge men, women and even children of the two rival communities and cruel fight, sometimes to death. However, in some areas of the Bolivian highlands, this ancient tradition is gradually turning into a ritual dance, attracting the attention of tourists.