I need everyones advice. We have a cow here who today is foaming at the mouth and trying to kill you if you get within 40 feet of her. She also went crazy amd jumped oover a 5 strand barb wire fence. Now she is a tame cow and you can usually walk up to her amd check her out and now today she is like this? Whst could be wrong? Rabies? Byt its MN and you wouldnt think she would get rabies in the middle of winter? Thanks in advance