This video has gone viral online, racking up thousands of likes and retweets after being uploaded to Twitter last week.
"You can keep the traditions without mistreating animals," Twitter user Cacharrero_M, who posted the video, wrote. "Look how well the dog plays with the children."
Many commenters agreed.
"[A] thousand times better than the original," one wrote.
While the "running of the dog" might have been an impromptu event put together by the kids, elsewhere in Spain, whole villages have begun to adopt humane alternatives to bull running. In Santillana del Mar, for example, inflatable bulls are used as stand-ins, goring townspeople with their air-filled horns.