Great example
I took my Very Good Boy to puppy training. A very excited and enthusiastic Good Boy, he kept on trying his utmost to make new friends.
The final test of the training was to walk unperturbed around a loud distraction. If a puppy could do that, the puppy learned well and could go out into the big wide world.
The trainer made my Very Good Boy that loud distraction.
He was never going to pass that test, but he could be a great example of what not to be.