If you are in a situation where you are in a bulls field, pen or accidentally got in the field or pen of a bull watch out for these signs.

The bull might paw at the ground with its hoof. It might also moo below or grunt at you it could also stop grazing and stare you down. If it shakes its head side to side these are all signs of aggression and or signs of attacking so if you see these in a bull or cow you must exit the are and never ever turn your back to the bull.