We had a 3 hour session with a dog behaviourist yesterday- thats myself OH and our Jack Russell Milo. We found our that we've been letting a 7kg dog rule the entire house and that he has been struggling somewhat with his role in life and hence the behaviour- growling barking excessivly going berserk at every sound and at the door, ripping up the post and last but most seriously, biting every member of the household. It is so quiet today since we got retrained and took back control. Why did it take a lot of money for us to realise what we were doing wrong? We've had him ten months and have spent the whole time letting him tell us what he wants to do and not do because, ahh, the poor boy has really suffered!