So I got a new puppy. He's a 10 month old German Shepard and while I knew how to introduce him to them and get an understanding on his part but what about their part? The geese just seem to hiss and hiss and stick their wings out and while I can understand why they are doing it, heck if it were me I'd do the same thing, I'm not sure how to get them to understanding either. How long will they consider him an intruder? I have had a dog since I got them and the neighbor has 2 dogs so they aren't afraid of dogs I don't think. I'm thinking its just because he's new. Also they seem to hiss at everyone but me. They even will hiss at my bf if he leaves with his friends and comes back a few hrs later. As soon as he steps out of the car they hiss at him. I thought he was lying at first because they have never done it to me, until I actually heard them hiss at my mom who comes over quite often and we look exactly alike. They don't charge or anything like that they just hiss. Is there any to teach them that's not appropriate? I tell them that's not nice in hopes they will learn but I dont think they will on this one. Any thoughts?