You know that guy who always leaves a quarter cup of coffee in the pot so someone else has to scrub out the burned-on sludge and start a new one? Well, the next time you’re at an after-hours drinking party, surprise him with this classic party prank from Tokyu Hands!

Specially designed with revenge-that-can-be-passed-off-as-fun in mind, the package shows the target gratifyingly shouting, “Stop!”

Your co-workers will thank you!