butter someone's biscuit vs divert

butter someone's biscuit

verb
  • To interest or appeal to someone; to make someone happy. 

divert

verb
  • To entertain or amuse (by diverting the attention) 

  • To turn aside from a course. 

  • To distract. 

How often have the words butter someone's biscuit and divert occurred in a corpus of books? (source: Google Ngram Viewer )