We have a wonderful Golden retriever who is housebroken and well behaved at home, age 6, but can lunge at other dogs in exuberant play while being walked. She is not the least bit aggressive with people or other dogs, but can react if you take away something she wants to hold onto. (growl). She is a 90-pound, strong dog so she needs someone used to handling large dogs.
1 Pet: 1 dog