Seems Mack is showing his true colors.

We got Mack June 29th 2006
The Transition went remarkably smooth. He listens to most commands, except when Outside and off leash. He is a bit stubborn. I think it is a breed trait.

The barking though has gotten worse, and he nips as well. Seems to me if he doesnt get his way, for example. Yesterday my BF and I were on the couch wathcing tv, while I was cooking supper and Mack wanted to play rough with my BF whom just got home from work. He started barking insanely and the started nipping at his hand. So he told him no. and of course that didnt help.

Mack is a great Dog other than the nipping and barking, he has even nipped at my daughters, if they tell him to stop barking he will run at them and nip at them as if to tell them no i wont. Such personality.
I cant leave him alone on the lead while in the garden in full view of me without non stop barking the whole time, and I dont even know the proper command to use to teach him to stop.

Can someone please give me some suggestions as to what to do.