Hi guys, im back again for your good advice.
The general behaviour and biting is getting bwtter now but a couple of things are getting worse.
**We have a stair gate as Barney isnt allowed upstairs. I use it to practise stay when we're doing training and hes really good but if i pop up to the loo or to get changed he just cries and howls the whole time. When i come down i ignore him till im well away from the stairs but its getting worse. Hes even started pulling the carpat apart too!!
**Just about everytime i sit on the sofa Barney jumps up and scratches at my legs (same wuth the kids). I try gently putting him down and ive tried ignoring him but neither work. He keeps doing it and gets bitey thinking its a game or he chews the sofa. This behaviour is getting worse and i cant just sit on the sofa anymore.

Any advice on either would be well appreciated xx

I'm getting  a similar sitting on the sofa problem too. We are staying at our static van at the moment and this is the first time Isla has seen us sitting on a sofa which is lower then the dining chairs she has previously been used to. Her first reaction was to try and climb on and join us which we have decided we prefer her not to although its very hard to resist at times. We have been pushing her down and saying no, which has been fairly effective, but when she is one if 'those' moods when she is being bitey and awkward, we stand up, turn our backs and ignore her. Luckily this is effective. When we do sit down, we try and direct her attention onto a toy or chew or a game until the moment passes. Your pup seems to be more hard work then mine from what you have been saying in this and previous posts so I sympathise, but be firm and consistent and you will get to the other side with your sanity and sofa intact.

Thinking about your first problem about being left when you go upstairs. Isla is not allowed upstairs yet either and doesn't like being left. If I'm going to be a while I put her in the crate with a chew or a Kong with something like liver paste or peanut butter smeared inside to keep her mind off me vanishing. I don't crate her if its only a short time as she tends to wait by the stair gate for me to come back. They do need to get used to being left and maybe you need to build up to longer waits. Try popping out for a minute, then come back and ignore for a few moments the greeting, get him to sit and reward with praise and a treat. Gradually build up the time you are away, hopefully he will be anticipating the praise and treat and start to wait for you more patiently rather then attacking the carpet.

Thanks Jodi, have tried all what u said :( have a few ideas to do with his clicker training ill try and see what happens. Its harder thana human baby!!

I do sympathise with you - when my Meg was a pup we had a dog gate across the utility room door so we could leave her still 'with' us but not underfoot.  She did not like it at all - mainly because she had been frightened by noise when she was there - in the end she just leapt over the gate but if we put our hands over for any reason she would bite them.  We took her to behavourist and the only advise was to why not let her in the house (at night-time that is) - in the end that is what we had to do.  She ended up sleeping half way up the stairs.  She accepts the kitchen door being closed now unless there is thunder at night.  I still won't let her upstairs at night-time so I have to come and stay in the kitchen - we now have a reclining sofa there.  Some dogs are just very determined.  I wish you all the luck. Anything on this video of any use???  http://dogmantics.com/2010/06/19/how-to-train-your-dog-to-be-left-alone-clicker-training/