disturbance vs red rag to a bull

disturbance

noun

  • Something that disturbs. 

  • The act of disturbing, being disturbed. 

  • A noisy commotion that causes a hubbub or interruption. 

  • An interruption of that which is normal or regular. 

  • A serious mental imbalance or illness. 

red rag to a bull

noun

  • Something that will enrage another particular person. 

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