Two Americans were among those injured during the annual Running of the Bulls tradition in Pamplona, Spain last week, including one guy who took a bull horn to the nuts.

Every year, thousands of tourists descend on Northern Spain to participate in this event, and every year people get hurt.

It’s unclear what the appeal of this event is; the “winners” don’t get stabbed by angry livestock and the losers do. It’s like running from the cops: you don’t have to be the fastest one, just not the slowest.