I have to agree with Jane on this one
a dog who thinks hes is the top of the pack is usually a pushy, confident dog, who wouldn't have a problem being left alone. A dog with seperation anxiety is a dog who through either their own personality, or that of their owner or circumstances that have surrounded the dog, becomes insecure of being left alone. As with my Sheba, it wasn't necesarrily me she was howling for, as if my mum went into the house, she would settle down :?
I have had a rescue dog that thought she was top dog and believe you and me, you would certainly know about it, if Barkley was showing signs of this. Basically the rescue who wasn't a cocker, was very pushy, she would come and demand to be stroked, demand her food, almost command us into doing what she wanted, we only had her three days, till one day she actually cornered me on the stairs, she wouldn't let me up my own stairs, it was really frightening, I had to leave the house and call the rescue centre for help :roll: they took her back, as she was displaying such worrying behaviour
I hope this puts Barkleys behaviour into persepctive I am sure if you keep following the good advise given, you will be able to nip the anxiety in the bud.
Take care