Animal Crossing: City Folk Easter eggs

Is Sable Really That Mean?
Ok, if you go to Mable and Sable's and talk to Sable, she'll usually ignore you. Well, if you keep talking to here everyday, then she will become more friendly with you and if u keep talking to her more after that, her and Mable eventually tell you of how they started their business and about their parents.
And c'mon, haven't you always wanted to know where those little porcupines came from anyways???