Aggressive Chocolate 6 Month Old Lab

by Mary
(Vienna, VA)

I have recently inherited a chocolate lab puppy from my Aunt. 95% of the time he is a friendly loving dog. It is that 5% which is scary.

He is very aggressive when trying to take something away to the point of Kujo like behavior. Things like pens and leashes in his mouth will start with a growl and grow into baring teeth and snarls. I want to keep him but am at a loss as to how to properly re-route this behavior.