banana skin vs predicament

banana skin

noun
  • A cause of difficulty, or potential embarrassment. 

  • The outer skin of a banana, especially once removed from the rest of the banana, which may be slippery if stepped on. 

predicament

noun
  • An unfortunate or trying position or condition. 

  • A definite class, state or condition. 

  • That which is predicated; a category. 

How often have the words banana skin and predicament occurred in a corpus of books? (source: Google Ngram Viewer )