beg vs draw a line in the sand

beg

verb
  • To unwillingly provoke a negative, often violent, reaction. 

  • In the phrase beg the question: to assume. 

  • To request the help of someone, often in the form of money. 

  • To plead with someone for help, a favor, etc.; to entreat. 

  • In the phrase beg the question: to raise (a question). 

noun
  • A provincial governor under the Ottoman Empire; a bey. 

  • The act of begging; an imploring request. 

draw a line in the sand

verb
  • To indicate the threshold or level above which something will become unacceptable or will provoke a response; to create a boundary and imply or declare that its crossing will provoke a (negative) response. 

  • To lay down a challenge; to provide a test of commitment (often one which carries a high risk) to a cause. 

  • To create a real or artificial boundary or distinction between (two places, people or things). 

How often have the words beg and draw a line in the sand occurred in a corpus of books? (source: Google Ngram Viewer )