fast and loose vs innocent

fast and loose

noun
  • A con game played with a chain, belt or string that is laid down to form two open loops. The mark places a finger or stick in one of the loops to try to secure the chain when it gets lifted, but the con artist is able to prevent this no matter which loop was chosen. 

innocent

adj
  • Free from guilt, sin, or immorality. 

  • Not harmful; innocuous; harmless; benign. 

  • Without wrongful intent; accidental or in good faith. 

  • Naive; artless. 

  • Not contraband; not subject to forfeiture. 

  • Lawful; permitted. 

  • Bearing no legal responsibility for a wrongful act. 

  • Lacking (something), or knowledge of it. 

noun
  • One who is innocent, especially a young child. 

How often have the words fast and loose and innocent occurred in a corpus of books? (source: Google Ngram Viewer )