Zack is a confident happy dog who can bite with no warning. He would only suit a handler who has done a lot of dog handling and training. We have not seen warning signs before Zack bites. 99% of the time he is a happy friendly dog. He walks nicely on loose lead, ignoring cars and dogs. He has lots of energy and likes to jog and run. He enjoys lots of attention and cuddles. He sits on command. He has a short coat and weighs a chunky 8.1kg.