An assistant to a Spanish mounted bullfighter waits on the sidelines during a horseback bullfight at San Fermin Fiestas, in Pamplona, northern Spain, Monday, July 6, 2015. Revelers from around the world kick off the festival with a messy party in the Pamplona town square, one day before the first of eight days of the running of the bulls. (Photo by Alvaro Barrientos/AP Photo)
