I know that you are hurting from your parents deciding that Chewey had to be PTS, but it seems to me that with this new dog coming into your life with issues, you are just giving up way too soon. Her problem is SO fixable with the right training. It sounds like she just had a bit of baggage, and you and your family added to that by inviting her into your life, and giving up so quickly. Having a label of "not good with men" does not look good to people adopting full grown dogs. That might be the ticket that will end up causing her ultimate euthinasia by the shelter. Honestly, when you mix in her breeding, with the fact that she's full grown or nearly full grown, and then having a label such as "not good with men" placed on her, her odds are not likely that she'll get adopted in my opinion and experience with shelters. I am not sure how the shelters work in your state, but here in Michigan, she'd be PTS if she was returned with "not good with men" labeling.

I think it's best that you don't get another dog until you are out of your house at least. It's not fair for the dog. You can't expect them to be the perfect companion right after they come out of a shelter, especially when they had an abusive background, which many shelter dogs unfortunately have. I feel very sorry for Chewey and for that poor dog who was adopted, given a home, given some time to bond, and then taken back to the shelter because of a very fixable problem.

Please don't ask your parents to get another dog. Think about the dog. That's two now that you and/or your family have given up on, and too soon in my opinion. Refraining from getting another dog until you are grown up would be a mature thing to do. Please don't get another one.

Sorry for sounding harsh, but in my opinion, giving up on Sheeba so soon was just terrible and I truly feel sorry for the dog. It hurts to hear of dogs going through things like this.