hi just my pennies worth lol, my bailie{12} got used to puppy,it took a couple off weeks, bailie run and hid most off the time, but i let him be, never make them do anythin they dont want to, but he srarted to get querious, and came out from hiding more and more, he put pup in his place, a few snarls lol, now they are inseperable, i also found taking them walks together really helped,