Zhao's dog is mentioned many times in Diary of a Madman. What's the point?

Zhao's dog has been mentioned many times in Diary of a Madman, and its function is to insinuate that the lackeys of feudal forces are eyeing up at any time. To express the dark and depressing social environment at that time, echoing the theme of "cannibalism" in the article.

Let's take a look at Diary of a Madman:

Diary of a Madman, written in April of 19 18, is the first short vernacular diary novel written by Lu Xun and the first modern vernacular novel written by China. This article was first published on May 19 18 in No.5, Volume 4 of New Youth, and was later included in Scream and compiled into Volume 1 of Complete Works of Lu Xun.

Through the image of the persecuted madman and the self-description of the madman, the novel reveals the "cannibalism" essence of feudal ethics, and shows the author's resistance to China feudal culture with feudal ethics as its main connotation. It also shows the author's profound sense of repentance. From the standpoint of radical "revolutionary democracy", the author deeply reflected on China's culture, and at the same time expressed his deep concern and indignation for China and even the future of mankind.