A runner is caught in between two Victoriano del Rio fighting bulls at the entrance to the bullring during the sixth running of the bulls at the San Fermin festival in Pamplona July 12, 2011. [Photo/Agencies]

A heifer charges at a reveller at Pamplona's bullring after the sixth running of the bulls at the San Fermin festival in Pamplona July 12, 2011. [Photo/Agencies]