The running of the bulls is an event that involves running in front of a group of cattle, usually six but sometimes ten or more. The origin of this comes from the need to transport the bulls from fields outside the city to the bull ring, where they will later be killed in the evening. 

Hundreds of people are injured each year and over a dozen have died. The bulls are scared and traumatised during the run. Unaccustomed to large crowds and the loud noises, they often fall and break bones and horns trying to escape. In the bullfight that follows, they often suffer a long and painful death as they are repeatedly stabbed. 

"Bullfighting is a cruel blood sport that should have been relegated to the history books a long time ago" argues PETA, an animal rights group. "No matter what its history is, bullfighting consists of the torture, mutilation and slaughter of animals for entertainment."