When I had moved into my townhouse I had a very nice old couple living next door.  The man used to talk to Woef and she tried to jump up against the wall in order to be with him.  It got so bad that I had to get a body harness and tie her to a peg in the ground to keep her safe. Of course the rope was of a certain length to allow her to move about. One lunchtime I ran into my neighbour in the shopping mall and what he told me had me in stiches.  Woef had heard him next door and she got very inventive. I had a table next to the wall seperating our units so she decided that would be the way she got over the wall to reach him.  Apparently he heard her barking and went outside to see what the matter was.  He found her hanging next to the wall almost like she had parachuted in.  Luckily it was a body harness and not a collar.  I hate collars, they're very dangerous.