Dealing With Aggression In Your Golden Retriever

One afternoon, my Golden Retriever was playing with one of his toys and I tried to take it away from him. He startled me by showing his teeth and growling at me.
As shocked as I was by this outward display of aggression, I knew I had to take control of the situation. Silently, I grabbed him by the collar and immediately led him to his timeout area.
By not speaking to him, I simply showed him in a firm and decisive action that I was not happy with him. By leaving him alone to think about things, I gave him the time to absorb what had just happened.
I waited about ten minutes and then I opened the door and invited him to come back into my living space.