Take a look at the article below from the PGA website that discusses 11 note-worthy times when the rules of golf were broken. As we kick off our academic year with a module that looks at how the rules of golf influence maintenance practices on the golf course I think this should be a good article to go through.
https://www.pga.com/news/golf-buzz/11-times-rules-of-golf-were-broken-sometimes-in-bizarre-fashion