The tailor can't win a word.

Deliberate accidents (good). The whole sentence of this two-part allegorical saying is: the tailor doesn't take a ruler-he doesn't measure it on purpose. Literally, a tailor should measure the length of clothes, the length of sleeves, the width of shoulders, the length of collar and the hem of bust. Only by measuring the size can he make clothes that fit. You didn't take a ruler, but you didn't measure it on purpose. The extended meaning is to describe that a person's words and deeds are suspected of framing and calculating others, and the starting point is not good, so it is called bad intentions.