Ah well first just "Tips," aren't gonna help this owner? A "Tip," would be "Walk Your Dog," Just do that.
That and well "other stuff," that I figured out worked for me. And my WL GSD that did not like "People!" And yes ... try and give him a "Cookie," if you wished and let me know how that "worked out?"
But a "Tip," would be ... "Walk Your Dog!" That is it ... that is all you need to do.
With my "Human Aggressive Wl GSD," that is mostly all, I did! And he became a great dog that save my life "unexpectedly and unbid," because he "learned to trust me!"
In retrospect ...simple enough. But what if "you can't walk your dog??" Well then ... your not gonna make much in the way of progress? And if your go to is a bag of "Cookies and advise on Dog Training from a Vet??" Good Luck with that!
Vet's are not "Dog Trainer's." That is not what they went to school for? Positive Only, gets' shelter dog's and dogs' with "Serious Issues," PTS, by the million's ie "Well if the Dog Won't take a "Cookie, he must be unfixable??" Yeah right.
Try and give a "Cookie" to "Shelly," here or dog's like her and let me know how that works out? .:
PO only works for certain dog's. And if one's world is "small enough?" Then you won't see dog's with "Serious Issues!"
Don't do rescue and don't do foster and you will never see them? But if one does? Then the first thing one will learn is "some dog's don't give a crap about "Cookies!" Just saying.
