Lian Po
In Lian Po's early years, he had victories in the wars against Qi and Wei. Lin Xiangru, a minister of Zhao, was disliked by Lian Po, because of his rapid rise to power and genius. But Lin Xiangru, in several famous incidents, took great steps to avoid Lian Po; in one case he even turned from Lian Po's carriage rather than block the great general's route. Eventually, all this began to cause shame and embarrassment to Lian Po, and he carried sharp brambles on his shoulder without clothing and asked Lin Xiangru to forgive him. Afterward, they became good friends. The "chengyu" of "Carrying Thorned Grass and Pleading Guilt" (), meaning "to offer someone a humble apology, requesting punishment and forgiveness", is derived from this story.