As a part of the San Fermin festival, the residents in Pampalona, northern Spain, the dare devils race ahead of hulking fighting bulls.
The festival lasts for nine days and all the 24 hours in a day.
Many people will be injured every year and even then, that does not put an end to their anxiety.
Though it is a traditional part of summer festivals across Spain, people also treat it as a cruel blood sport.
The video below shows how the Pampalona residents are excited about the sport.
By Phani