12 hrs is wayyyyy too long for a puppy to be alone. Too bad you couldn't take a few weeks at home to get her all trained...
I've left my 4 month old in her crate for 8 hrs, and the same thing happened. I don't think there is much that can be done other than not leaving them alone for so long... eventually when you give her free run of the house when you are gone, the problem should solve itself.
Good luck! |