out on a limb vs reckless

out on a limb

phrase
  • In a risky, precarious, daring, or uncompromising position, especially one outside of the mainstream; vulnerable. 

reckless

adj
  • Careless or heedless; headstrong or rash. 

  • Indifferent or oblivious to danger or the consequences thereof. 

How often have the words out on a limb and reckless occurred in a corpus of books? (source: Google Ngram Viewer )