Running of the BullS participants gets startled as a bull runs by him Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
Running of the Bull participants get out of the way of a bull Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
Running of the Bull participants appear to be having a little fun as they take cover from charging bulls Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
Running of the Bull participates feel the heat as they try to get out of the way of charging bulls Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
A Running of the Bull participate stumbles as charging bulls close in behind him Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
Running of the Bull participates appear to be having a little fun as they get out of the way of charging bulls Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
After stumbling, a Running of the Bull participate does his best to out run charging bulls Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. The runner did regain his balance and did not get hit by any bulls. (AP Photo/Darryl Webb) (AP2011)
A Running of the Bull participant eyes a bull as it closes in on him Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
A couple of colorful cowboys skip along the course before the Running of the Bull Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
Running of the Bull participants try to get out of the way of a herd of bulls Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
CAVE CREEK, AZ - OCTOBER 15: Participants prepare before the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: A participant wears a target on his back before the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
Running of the Bull participants stay clear of a charging bull Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
CAVE CREEK, AZ - OCTOBER 15: Participants prepare before the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Participants prepare before the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Jon Kaiser (C) and other participants prepare before the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
Running of the Bull participant Seth Friedrich from Pekin Illinois surveys the track before his run Saturday Oct. 15, 2011, in Cave Creek, Ariz. Over 1,000 thrill seekers experienced an adrenaline rush of a life time by running a quarter mile in front of forty 1,500 lbs. raging bulls during the 4th Running of the Bulls in America. (AP Photo/Darryl Webb) (AP2011)
CAVE CREEK, AZ - OCTOBER 15: Participants run during the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: A woman rides a mechanical bull before participating in the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Participants walk to the starting line before the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Participants run during the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Participants run during the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Participants run during the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Sean Kenney (L) helps Jon Kaiser (C) streech before participating in the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Participants run during the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: J.D. Jarvis (L) and Travis Cook where red costumes during the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15:Participants run during the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)
CAVE CREEK, AZ - OCTOBER 15: Participants prepare before the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. Over 4,000 people are expected to run with twenty-one bulls along a quarter mile track during the three day event. (Photo by Joshua Lott/Getty Images) (2011 Getty Images)