humiliation vs red rag to a bull

humiliation

noun

  • The act of humiliating or humbling someone; abasement of pride; mortification. 

  • The state of being humiliated, humbled or reduced to lowliness or submission. 

red rag to a bull

noun

  • Something that will enrage another particular person. 

How often have the words humiliation and red rag to a bull occurred in a corpus of books? (source: Google Ngram Viewer )