"Beware the fury of a patient man."
Sometimes, trying to Break the Cutie can have consequences. Sometimes, the nicest person in the story gets pushed to the limit of what they can take. And the results? Are not pretty.
The sweeter, gentler, more polite, more peaceful, and overall nicer a character is, the worse it will be for whomever is in the vicinity when they're subjected to one too many rounds of Break the Cutie, or Dude, Where's My Respect?, a Rant-Inducing Slight, or hitting their Berserk Button or Rage Breaking Point. What was once a sweet and nice individual suddenly snaps and becomes something far worse than the Big Bad could have expected.