The trip outside with Li Yuanba enlightened Zheng Tan somehow.
It was said that she was a stray cat, which made her more experienced than domestic cats. She could distinguish the good from the evil in both humans and animals which allowed her to be imperturbable. She was calm walking on the street yet knew how to deal with hostility.
Some people would leave when you act threatening while others might become excited. This was the case for humans. For cats, the situation was more dangerous. Strays would run away once they saw humans because they could not tell who had good intentions and who had evil ones. This became an instinct after being hurt several times.