Reagan obeys and loves both my wife and I, but he acts diffidently towards us. He is more loving and protective of her (he seems to be a lady's man in general). With me he seems more playful and responds to commands faster. This may stem from the fact that I feed him, groom him, take him out, and do the better part of his training. Strangely enough, after working at a kennel for 13 years, Krista is more of a cat person. I don't mind anything about this, part of why I wanted a Shepherd was to protect Krista when I'm out of the country. I just think it's a little odd. Do any of your dogs act differently toward men and women?