kiss of death vs mishap

kiss of death

noun
  • Something that may seem good and favourable but that actually brings ruin to hopes, plans, etc. 

  • A kiss on the cheek that signifies the death of the receiver, as delivered by a mob boss or one with such influence. 

mishap

noun
  • Evil accident; ill luck; misfortune; mischance. 

  • An accident, mistake, or problem. 

How often have the words kiss of death and mishap occurred in a corpus of books? (source: Google Ngram Viewer )