How do rams respond to the presence of a large dog in their pen (100x200 ft). Specifically, if one were to bring, say, a 200-lb. English mastiff on a leash every day, would the rams instinctively stay away? Or would they become aggressive at the perceived threat? The dog would enter enter the pen on a leash - he is an indoor pet, NOT an LGD. Very curious, as I have not found a clear answer on this. Thanks.