英譯：
be hoist with one's own petard
例句：
The criminal was hoist with his own petard when he tried to kill his wife, because he accidently drank the poison that he intended to give to her. (這個罪犯想謀殺他的妻子，但害人反害已，因為他誤喝了他打算給妻子喝的毒藥)
The most enjoyable moment in any action film occurs when the villain is hoist with his own petard. (動作片中最令人雀躍的時刻就是壞人自食惡果的時候)
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