I really hope my sister is telling the truth and the dog she brought home from the shelter was a "one night thing," but she said depending on how last night went, she said she might end up fostering her. Neither my mother nor I were talked to or considered in this decision, which is going to put me in the awkward position of telling my mother. And then in the even more awkward position of hoping the shelter made an idiotic mistake giving it to her because she's a "legal adult" (that we can call and complain about) as opposed to my sister lying about where she got the dog. But what infuriates me most about it is she brought this dog into our dogs' territory with no neutral ground introductions, knowing that we have two dog reactive dogs and my dog is small dog reactive when on leash and tends to be a bully even off leash. She doesn't even currently take very good care of the dog she has, e.g. one day he was crated for
20 hours and the neighbours have submitted complaints about his barking she refuses to deal with. She's angry we don't help more with him but we took care of him for 7 months when she took off to live with her boyfriend at one point and my mother and I are fed up of being given the responsibility over her dog. A foster just... isn't a good idea, and I'm not going to keep it from my mother, but I don't want to have to deal with the drama of my sister still trying to sneak it in or with the fact she might have lied about it coming from the shelter because what then? It's an adorable dog but we don't need a third dog, and since I'm often the one who ends up paying for things (I would have had to have paid for her cat's dental if my vet weren't doing it for free and have had to help with his vet care in the past) and taking care of things (I'm the one who took care of the dog for 7 months and who took care of the dog for an x-month period just a little while ago), I don't have time for a third dog. Plus she wants to keep it right outside the garage and she can't keep it or sneak it (which I don't see how she plans that to work anyway) if it's going to send my dog into a barking flurry.
Edit: Oh, and then there's the thing about how she's been leaving her dog in the backyard most days and how apparently fostering this dog won't really matter because she can "take her everywhere." There is such an issue with this that I can't stand it.