fool vs have on

fool

verb
  • To trick; to deceive. 

  • To act in an idiotic manner; to act foolishly. 

adj
  • Foolish. 

noun
  • A type of dessert made of puréed fruit and custard or cream. 

  • A jester; a person whose role was to entertain a sovereign and the court (or lower personages). 

  • A person with poor judgment or little intelligence. 

  • A particular card in a tarot deck, representing a jester. 

  • Someone who derives pleasure from something specified. 

  • Buddy, dude, man. 

have on

verb
  • To trick or deceive deliberately; to play a prank on. 

  • To have turned on (an electronic device) 

  • To be wearing. 

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