There's a certain 65 lb. pit bull cross in my life who loves to jump fences. We currently have a 5.5 foot tall fence which she can bound over in one leap. Adding more height to the fence seems to be out of the question. I know not leaving her unattended in the yard would be the simplest solution, but with work, school and a host of meetings and conferences it's impossible to think she won't be alone for the 5 seconds it takes her to jump. I was doing some research on the subject and stumbled upon the no-jump harness, which restricts movement of the hind legs. Essentially, the dog can walk, sit and lie down comfortably, but as soon as they attempt to jump the harness restricts the motion. Just curious if anyone has tried the harness with any success, or knows of another way to keep her in the yard short of electric fences and radio collars.