Jealousy is a common occurrence among people who have multiple pets, and competing for favor may turn one of the pets into the embodiment of jealousy, and even do things to make the other pet angry because of their inner jealousy.
The dog is such a jealous pet, and the object of its jealousy is the most favored Corgi in the family. In order to vent its inner jealousy, the dog begins to observe the Corgi's daily behavior, hoping to find flaws in it to ridicule the Corgi.

Under the dog's careful observation, it finally discovered the point where it could ridicule the Corgi, and that was the Corgi's short legs. Every time Corgi walks, he always sticks to the ground, just like a dog crawling on the ground.
The dog was very happy after making this discovery, and he thought about finding an opportunity to do something to the Corgi's short legs in order to retaliate for being deprived of most of his owner's love by the Corgi.
Ever since, when the dog was walking with the Corgi, it silently lowered its body and crawled forward. While walking, the dog did not forget to put on a seemingly friendly smile, but in fact it was just expressing its ridicule.

Corgi didn't notice that the dog was imitating him to walk at first, and when he saw the poop shoveler, he paid no attention to the dog. He only wanted to run to the poop shoveler's arms quickly.
Then Corgi immediately walked in front, but the dog continued to imitate Corgi's walking behind him, rolling his eyes from time to time to show his irony at Corgi's short legs.
Dog: For a dog, its legs are so short, but it doesn’t feel ashamed, and it looks happy. It doesn’t feel ashamed, and I feel ashamed of it.
When Corgi walked around the corner, he finally found the dog learning to walk behind him, so Corgi barked at the dog, as if to say: Who are you, get up!
The dog was frightened by the sudden barking of the Corgi, and then stood up from the ground. However, when it looked at the Corgi, it silently lay back on the ground, and gave Corgi a look that asked you to take care of it.

Dog: If you ask me to stand up, I will stand up and I will lie down. And I am just imitating you to walk. Isn’t that how your short legs walk? Is it possible that I haven’t learned enough? Then I'll take a few more steps to show you!
Looking at the dog’s movements, Corgi was so angry that the whole dog almost turned into a bun. However, despite this, the dog still did not give up imitating Corgi’s walking, and continued to lie on the ground and walk forward so blatantly.
I didn’t expect that dogs would be so jealous when they were not so favored, and would use sarcasm to stimulate corgis who were competing for favor. RIO's father felt that Corgi must be complaining crazily in his heart about what the dog did, and even felt that he was offended by the dog.

I hope that the dog’s imitation did not leave any psychological shadow on Corgi, otherwise Corgi will live in an atmosphere of self-doubt in the future. Although the dog will have a great sense of satisfaction in his heart, it will be too miserable for Corgi.