When I adopted my two shepherds, they both did similar things. I adopted Iris first, then about a year later, Raven came.

I know Iris was housetrained, but she sure did NOT act like it. Dogs like routine, and what was happening was not like usual. She needed about a month to adjust, and then - no more potty accidents.

When we adopted Raven, she had similar problems. Like Iris, she WAS housetrained, but she was just so stressed out. She needed about a month of adjustment time too.

When we got Raven, Carl (my Rottweiler) did not want a second sibling. If Raven picked up a toy, Carl would growl. We just let them do what they wanted (meaning growl at each other, but only if we were watching them), unless it became really intense. We knew that the dogs would work it out best on their own. After about 2 months, Carl got used to Raven, and accepted her. Now she can pick up toys without a problem.

I think part of the toy aggression problem was Carl thought all the toys were his. He has since learned that other dogs may pick up his toys, he has to share.

Good luck with your new dog. I'd give her another chance, she sure deserves it.

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-Rottie