Dealing With Aggression In Your Labrador

I tried to take a toy away from my Labrador and he astonished me by growling in protest.
I was shocked by his aggressive display but I knew that this was the moment to stop it permanently. Without saying a word, I took him by the collar and led him to his timeout area.
There was no reason to speak to him, by showing that I was displeased and banishing him, he was able to be alone and understand the gravity in his mistake.
I left him alone for about ten minutes and then invited him back into my space. As long as he behaved, I wouldn't need to repeat the process.