I know the lady you are talking about. Her old dog, a black lab cross which she had from a puppy was called sweet pudding. It got very aggressive and we used to make a detour when we saw her with it because it didn't wear a collar, she never walked it on a lead and she couldn't control it. She had brown hair then as well. I hadnt seen her for about 2-3 months and then saw her last weekend with the black lab puppy you mentioned and newly dyed blond hair. I think the new puppy is called pudding (minus the sweet). This one has a lovely nature, a collar and lead and she seems to be doing her best to train it. I'm not sure whether the original sweet pudding went to. She has isn't always pleasant and you never quite know how she'll be so i just tend to avoid her if i can.