Our 4 y.o. lab/pit rescue dog has been the insecure type since we got her. Seems to be getting worse, she was always S.A. type when we would leave, even tried the "short trip" training, but maybe not enough. Yesterday she had broken down a plywood 4' high barrier we use to keep her in the kitchen and utility room area, no doubt searching for us. I know this is almost an impossible thing to break, but am open to any ideas, short of always taking her with us or trying to find someone willing to babysit her for us.