The owner was very smart in training his dog. The dog stood on a thin wire. The owner asked him to perform for the people nearby, or told him to stand up and straighten his back. The dog also tried with all his strength.
The steel wire was too thin, and he couldn't sit firmly without falling. It was already very serious.
But the owner just asked him to stand up. After the dog stood up once, he almost fell. The dog felt special pain and his feet were constantly trembling. The owner could not feel the fear at all.