To answer your question: Yup, went through this very thing with a beloved shepherd many years ago. Job requirements and life situation changed to where the dog was home alone for nearly 12 hours a day. It wasn't right, so we let her go to an older couple with land and time. It sucked, but it was better for her.
We're in a better situation now and looking to add a big dog back into the family...
We're in a better situation now and looking to add a big dog back into the family...