We've had our 9 week old 'sprolliedor' puppy just 6 days and I'm in love already but I'm beginning to worry she's neurotic. I've been alone in the house with her today. I've had to go upstairs to the loo a couple of times (leaving her behind the stair gate) and she's started whining and barking even though I've kept talking to her all the while. Then, when I've come back through the stair gate she's jumped at me, barking and biting at my bare feet in a way in quite an aggressive way. Is this normal? Suggestions?