@Quercus:
I wish Lady the best of luck, however the situation works out. But I seriously hope you won't label her even 'mildly' aggressive because of her interactions with Raven. Her behavior is NORMAL dog behavior, of course she wants to be the alpha dog, she is a basenji bitch!!! she is using the means that she has to reinforce her status as the dog with the highest social ranking in the house. If you don't want to keep her, because she doesn't work out with the new dog, don't blame it on her. Just say "a basenji isn't right for my family, we would rather have a lab"
Best of luck to you and Lady, I hope that Raven works out better for your family…and yes, please don't label her as "mildly aggressive"...especially when your first post on the board said that this is how you acquired her:
A friend gave us a beautiful female Basenji named Lady yesterday. Our friend has many dogs and one of them (a Heeler) doesn't get along with Lady. He would pick fights with her contantly. Because the Heeler is a work dog and trained to his owner's liking, she decided she had to part with Miss Lady.