Maybe you're in the mood for a little payback on your bothersome little brother, or perhaps you just woke up feeling like a total troll today. Either way, creative studio Last Lemon [1] has got you covered. The studio designed hilarious graphics on the most efficient ways to be annoying — and nailed it. If you do any of these things, you're kind of the worst. Check out these 15 images, and then get to work.