Carrie Classon’s, “Blue Yarn: A Memoir,” is available at Amazon, Barnes and Noble, and other fine stores. Learn more at CarrieClasson. com. I saw the burro wearing pants and carrying a basket filled with paper flowers. “Oh, my gosh!” I said. “That poor burro.” There are several burros with this job in this Mexican town and, as burro employment goes, it’s a pretty easy gig. The burro wears a rustic basket filled with bright paper flowers and is led by a man in a similarly rustic costume, and they follow wedding processions, providing photo opportunities for the guests. The burro is photographed dozens of times and spends the afternoon in the park, doing her best to look picturesque. On weekdays, when weddings are less common, the burro and her handler park themselves on a narrow bit of cobblestone street with a beautiful view of the old church in the background. Tourists get their photos taken with the burro for a few pesos. I saw no harm in it until the day the burro showed up in…