Our new dog, that we got six weeks ago, Buddy, age 3 to 5, is now showing a new problem we've never had in any previous dog.. When we visit friends who have dogs, Buddy won't let our friends' dogs get near me. Buddy will put himself in between, and even growl or snarl if any other dog comes close to me. So, now, mostly, i ignore the other dogs. Then it dawned on me, well, Buddy may interpret this as i do not want the other dogs near me....so then I've tried this: When the other dog comes to see me, i treat Buddy for letting the other dog near me--IF i can reward in time before Buddy snarls about it, which is not easy, as Buddy is pretty watchful. Soon as Buddy finishes his treat, he growls at the other dog being so close to me.:dognowink: I am open to all tips, advice, insight. I want Buddy to be happy calm dog.