In talking with another person on aim, I am also reminded of one of my shepherds that came as a rescue to my house. This dog the owner father had died, and the mother couldnt care for the dog. The dog was in such deep depression- having lost all cue on life with the death of her owner. She was so depressed we had to end up tube feeding her for a week as she almost died she would not eat- I mean NOTHING.. She could not understand why she was at my house, where was her dad, and she was going to wait for him.
It took months before she freely ate, and about 4 months before she actually started to play. You just never know as stated above- . BTW_ most rescues come to a foster then placed, but her reaction to being moved was so severe, she lived out her life with me as just a pet..