"Domestic" livestock can be quite dangerous, largely because we think of them as tame. One of my aunts was taking pictures of my BILs dad's buffalo to use as models for her sculpture. She had been warned to stay in her car, but the herd was so peaceful, she got out. Her attitude allowed the bull to walk closer, then charge. My cousin got to watch her mom get tossed about 30' when he gored her through the thigh. Fortunately, the cows circled her and kept the bull away. Fifteen or twenty minutes later, my cousin was able to drive up and pull her mom into the car & get her to the hospital.
I've had a few cases of cow tracks, but none that put me in the hospital overnight. Still have a scar on my ribs from getting tossed over a 6' alley fence by a longhorn I was doctoring. The landing hurt worse than the scrape.
Animals, even the long time domesticated like dogs, are still animals. "Trust" is always best with some awareness & and a dose of caution.
edit for the pedantic amongst us. She was gored by an American bison in Colorado, not a buffalo in some other country....