Hi!
Of course the easiest solution is a doggie diaper...that would prevent accidents in your house, but watch her because if she pees in the diaper, it is lined with plastic and can trap moisture and cause infections.
I would tell your friend to get a vet check up. It is not common for dogs to do this unless there is a reason and I personally don't believe that they have the capability of reasoning it through and "getting even" for being left alone. Usually there is a physical thing going on. Once you rule that out, if she continues, the diaper would be a good choice because she won't ruin your carpeting, yet she would be free to play with Cin.
Good luck!
Of course the easiest solution is a doggie diaper...that would prevent accidents in your house, but watch her because if she pees in the diaper, it is lined with plastic and can trap moisture and cause infections.
I would tell your friend to get a vet check up. It is not common for dogs to do this unless there is a reason and I personally don't believe that they have the capability of reasoning it through and "getting even" for being left alone. Usually there is a physical thing going on. Once you rule that out, if she continues, the diaper would be a good choice because she won't ruin your carpeting, yet she would be free to play with Cin.
Good luck!