I was referred to Don Sterling at Quail Run Kennels by some K-9 police that I met at one of their demonstrations. I have a german shepherd who exhibits severe territorial tendencies on my property and in my house in terms of his behavior towards strangers. I have gone through several trainers but none has been able to adequately address the problem. I decided to call Don who graciously invited me to bring my dog to him for an observation. I expected that my dog would be hostile – at least at the outset. Much to my surprise, I don’t think 2 minutes had passed before my dog was literally eating out of his hand. I was shocked. Don told me that my dog had really been mis-diagnosed. He quickly evaluated his personality and told me what I needed to do to change his behavior. I am eternally grateful. Don thought that his training classes might help also from the socialization perspective and so we will be signing on to those in the spring. Thank you again, Don.