This is getting a little off the subject, in response to the post above, Cattle and other animals for that matter, will react to environment and positive or negative interactions with other beings and/or objects. Having a beef cattle operation myself, I can tell you that cattle will run around feeling frisky upon temperature changes, weather front movements, etc., with no intention of inflicting harm to others.
As I just stated, how an animal is trated can have a direct response on its behavior. For instance, in parts of South America, some cattle that are raised for beef production are so wild from the environment they are in (jungles) and the lack of human interaction, that they probably would provide quite a challenging "hunt". Yet, they are considered to be domesiticated creatures. But when it comes time for round up, helicopters, air boats, mean dogs, etc, must be employeed to corral them.
My 2 cents,
Smoky