bad manners vs propriety

bad manners

noun
  • The treatment of other people in an impolite or discourteous way, or incorrect behaviour in public. 

propriety

noun
  • The fact of possessing something; ownership. 

  • Suitability, fitness; the quality of being appropriate. 

  • Correctness in behaviour and morals; good manners, seemliness. 

How often have the words bad manners and propriety occurred in a corpus of books? (source: Google Ngram Viewer )