Our rescue Border Collie mix had trouble with aggressive behavior toward other dogs, was bad on walks, and tried to tear apart the door every time someone rang the doorbell. Our vet recommended Morris and said she has seen him work miracles. After just two sessions our dog was much better behaved on walks, and we felt much more confident taking him around other dogs. Of course, Border Collies are stubborn AND smart, a bad combination, but I think we all feel much more confident and happy around each other now that the ground rules have been established. I highly recommend Morris; he really knows dogs.