「恩將仇報」

(pos:動詞)(sim:以怨報德)
<explanation>
yue:形容人唔報答人哋恩情不特只，仲同佢結怨
eng:to bite the hand that feeds you; to forget one's benevolent favour but treat that person with enmity instead
<eg>
yue:好心介紹同學入公司做，點知俾佢恩將仇報，監生逼走埋。 (hou2 sam1 gaai3 siu6 tung4 hok6 jap6 gung1 si1 zou6, dim2 zi1 bei2 keoi5 jan1 zoeng1 sau4 bou3, gaam3 saang1 bik1 zau2 maai4.)
eng:I kindly recommended my classmate for a job at the company, only for him to repay my kindness with betrayal and eventually force me out of my own job.
<eg>
yue:佢哋待你不薄吖，你點可以咁恩將仇報到害人全家㗎？ (keoi5 dei6 doi6 nei5 bat1 bok6 aa1, nei5 dim2 ho2 ji5 gam3 jan1 zoeng1 sau4 bou3 dou3 hoi6 jan4 cyun4 gaa1 gaa3?)
eng:They treated you so well. How could you repay their kindness by turning against them and bringing harm to their entire family?