I'm so glad to hear you're getting a puppy. What a lucky little devil he'll be!
My daughter did the early socialization & nobody socializes better than my Dot. HOWEVER, one area where I was remiss is that he's such an endearing, lovable & trustworthy guy that I was over indulgent & overlooked mild brattiness. He doesn't growl, snarl or hackle, but he's intolerant of other dog's getting my attention & uses his sheer size to push his way through. I definitely should have caught on to this possessiveness earlier. However sweet the next guy is I plan to be less indulgent.