Piazza del Campo, the perimeter of which is covered with several inches of dirt (imported and laid for the occasion at great expense to the city) and the corners of which are protected with padded crash barriers for the occasion. The jockeys ride the horses bareback from the starting line, an area between two ropes. Nine horses, in an order only decided by lot immediately before the race starts, enter the space. The tenth, the rincorsa, waits outside. When the rincorsa finally enters the space between the ropes the starter (mossiere) activates a mechanism that instantly drops the canapo (the front rope). This process (the mossa) can take a very long time, as deals have usually been made between various contrade and jockeys that affect when the rincorsa moves - he may be waiting for a particular other horse to be well- or badly-placed, for example. On the dangerous, steeply canted track, the riders are allowed to use their whips (in Italian, nerbi, stretched, dried bulls' hide) not only for their own horse, but also for disturbing other horses and riders. The Palio in fact is won by the horse who represents his contrada, and not by the jockeys. The winner is the first horse to cross the finish line—a horse can win without its rider (a condition known as cavallo scosso). A horse can also win without its decorative headgear (spennacchiera), although the opposite belief is widely held even among the Sienese. The loser in the race is considered to be the contrada whose horse came second, not last. The winner is awarded a banner of painted silk, or palio, which is hand-painted by a different artist for each race. The enthusiasm after the victory, however, is so extreme that the ceremony of attribution of the palio is quite instantaneous, being the first moment of a months-long celebration for the winning ward. There are occasional outbreaks of violence between partisans of rival contrade. There may be some danger to spectators from the sheer number of people in attendance. There have also been complaints about mistreatment of horses, injuries and even deaths, especially from animal-rights associations and even from some veterinarians. In the Palio held on 16 August 2004, the horse for the contrada of Bruco (the Caterpillar) fell and was badly trampled, as the race was not stopped despite possible additional safety risks for other horses. The horse died