With Rage Against the Machine blaring through a pair of loud speakers, a herd of bulls kicked up their hoofs for a stomping parade. All the while, a clan of anxious homosapiens, adorned with blood-red bandannas, use their sweaty palms to grip the bars of a steel fence just a few yards in front. All that lies ahead of the mammals is an enclosed stretch of grass, not wider that the length of a car. No, it's not Pamplona, Spain. It's the backyard version of Running of the Bulls that lured a few hundred daredevils to the Cool River Ranch in Martindale, Texas, located just outside San Marcos.

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