rock the boat vs stir things up

rock the boat

verb
  • I'd just jump in and fix it, but that's not my job, and I don't want to rock the boat. 

  • To disturb the status quo or go against rules or conventions, as in an effort to get attention. 

stir things up

How often have the words rock the boat and stir things up occurred in a corpus of books? (source: Google Ngram Viewer )