There really is nothing quite like witnessing moments of public pettiness. In a world filled with obnoxious neighbors who take things without asking and coworkers who completely lack self-awareness, it's sometimes necessary to reprimand their behavior with a helpful note for all to see.

Whether you're just learning about the passive-aggressive behavior movement or you've always appreciated a good burn or two, we're here to improve your day with 15 of our favorite images collected from numerous social media reports of people who have been caught doing exactly this.

Passive-aggressive behavior rarely goes unrecognized, and it's easy to be hit with more of it at random points in life simply because it's so effective. Our thoughts are with those who try to unsubscribe from Duolingo with grace or anyone who's stumbled into the path of one of these people, whose lives are governed by the laws of passive-aggressive behavior.

Take a look at some of the funniest examples below.