badger vs look for trouble

badger

verb
  • To pester; to annoy persistently; to press. 

noun
  • Any mammal of three subfamilies, which belong to the family Mustelidae: Melinae (Eurasian badgers), Mellivorinae (ratel or honey badger), and Taxideinae (American badger). 

  • A native or resident of the American state, Wisconsin. 

look for trouble

verb
  • to deliberately act in a way that's likely to lead to a fight. 

  • to do things that are likely to cause problems. 

How often have the words badger and look for trouble occurred in a corpus of books? (source: Google Ngram Viewer )