These are of course a few of the most extreme and most memorable cases of separation anxiety that I've addressed over the years. Separation anxiety is not simply a dog making trouble in the house when you are not in it. It is a condition that puts the dog in a heavy state of panic when you depart, and can manifest itself in various ways: destructive behavior, toilet accidents inside, or excessive barking, howling and whining.
It can also manifest itself in severe depression (inactivity), and incessant panting, shaking, and drooling when the owner is away. Upon return, hyperactivity, and an excessive and uncontrollable greeting are also strong indications.
The source of this condition is no real puzzle. If you consider that puppies are typically taken from their mother when they are several weeks old, and brought into a home in which their master may go off to work for much of the day, anxiety should come as no surprise. For adopted or pet store dogs, the situation can be much worse, they've been through a succession of care-takers in a very short time, and don't trust anyone to stick around. Who can blame them?
About The Author:
For more great Kingdom of Pets articles on dog training, including "Separation Anxiety: some Solutions," visit: http://www.kingdomofpets.com/dogobediencetraining/articles/separation_anxiety_in_dogs.php.

