I'm still waiting for Ava's behavior to change (she will be 2 in June)....she doesnt bark much at all, a stranger walked up to the car just the other day while I was in the store.....when I got back the lady was having a discussion with Ava through the cracked window, Ava was quite polite. Of course the lady was as well. Ava doesnt bark much at home either......only occaisionally, the last time she had a fit at the side door (about a week ago). I checked, told her I didnt see anything and went to bed, about 10 minutes later we hear police cars....My husband got up and told me later that the police circled our block for about an hour or so....weird huh? I guess if there is something wrong she will let me know. I keep waiting for her to become more suspicious....hasnt happened yet.