Question:
About four years ago, my husband and I adopted a then-2-1/2-year-old Jack Russell terrier/whippet mix dog, Zero, from the Humane Society. He apparently had been abused and, initially, was extremely fearful of my husband.By now, he is quite obedient (he comes when called, obeys "sit" and "down") in the house, but if he gets away from the leash outside he gets very aggressive, tries to protect us and, in the process, has bitten several people. Outside, he is also not approachable and runs away when we try to catch him. It seems his entire personality changes when he is off the leash. He also gets aggressive when someone comes to the door of our house. If I expect visitors, I try to meet them outside so we can enter the house together. Then he is fine.Needless to say, his behavior has caused us a lot of trouble so far. I have tried training him with a trainer who specializes in behavior problems in dogs, but it really didn't help much at all. He is very good with our old cat and also loves to have our grandchil
L.N., Bethesda, Md Sep 11, 2005
Answer:
Since your dog has had a history of prior abuse, he is most likely expressing defensive, fear-based aggression toward strangers. Since one behavior therapist/trainer was not able to modify your dog's conduct, I suggest you try another animal behavior expert that your veterinarian or local animal shelter might recommend. If that fails, then have your veterinarian put your dog on a trial prescription of one of several psychotropic medications that help reduce fear and anxiety or elevate the dog's mood, such as Valium, Xanax or Prozac. If this approach fails or is not acceptable to you, your dog should wear a muzzle at all times when outdoors, except in hot weather when he is very active.
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