We have a 1.7 year old boxer/lab and are looking for affordable training. Anyone have success with PetSmart or can recommend a reasonably priced trainer? My biggest concern is teaching her to not pull on the leash when we walk or when she sees another dog/human/animal pass by. She also barks or growls when they pass, but she is super friendly, so I don't understand why she does it. Once she is close to said human/dog she is fine. We go to the dog park and she doesn't growl or bark at anyone or any dog there, always plays friendly. Thank you for the recommendations!