i'm so sorry you're going through this! our neighbors fences are the same as ours (connected on 3 sides!) and several of them have dogs. ours bark at them, but i'm quick to call the dogs inside the SECOND the first barks makes its way to the house. theirs bark at us too, but then when we say their names they usually stop unless we have a big burly jacket on and they don't recognize us. maybe it's just something about the fence with her, since she came from the humane society?? you know how some dogs act a fool through fences but then once you're on the other side they're as nice as can be?? i've met several dogs like that, and i do admitt, mine are like that, too, sometimes although with them it's more a "i wanna see who you are" (they'll even bark at me and hubby on a rare occasion ha ha)... i'm not really sure what to do, you could try bringing it up to the neighbors and see if you could meet her in their yard, just to put your mind at ease, or if you're able to, do like we'll hopefully be doing next month, and put a privacy fence up. hope it works out for you!