decide vs twist the knife

decide

verb
  • to cause someone to come to a decision 

  • to resolve (a contest, problem, dispute, etc.); to choose, determine, or settle 

  • to make a judgment, especially after deliberation 

twist the knife

verb
  • To deliberately do or say something to worsen a difficult situation or increase a person's distress, irritation, or anger. 

How often have the words decide and twist the knife occurred in a corpus of books? (source: Google Ngram Viewer )