It’s everywhere!
Just because you and another person work for the same company doesn’t mean you guys are close buds. In the OP’s story, he learned of two employees who didn’t get along very well, to say the least. Thankfully, one of them had put in his two week’s notice, so that would be the end of a conflict-filled chapter for the company. But that didn’t turn out to be the case.
On the day before he was supposed to leave, he took a garbage bag full of doggy droppings and dumped the contents on top of his nemesis’ car. There was enough of the stuff to cover the poor guy’s car from its front bumper to the rear windshield.