Chubby was so smart that he could even open the security door.
One thing mentioned by Kate occurred to her. One day Kate noticed that Mitch and Chubby were not at home and later found them in front of the door when she was going out, but she couldn't remember when she opened the door and let them out.
Chubby opened the door himself and went out. According to Kate, he knew he should close the door, did he?
Albert came in and saw Sophia not standing in the doorway, but standing some distance from it.
"I told you, the door opened itself." Albert said, "So strange!"
Sophia asked, "Did you see Chubby when you came in?"
"Yeah. He's right at the door… Oh, he's here now."
"Well, you may not believe it, but… my dog may not be an ordinary dog."
She showed the video to Albert, who was stunned after watching it.
"Chubby is so smart. When did he learn to do that? Could he become a man?"
