When one employee offered his younger, well-liked coworker a ride to work, he thought he was just doing a small favor. But things took a turn when his passenger started showing up every day with food and drinks, leaving wrappers, cans, and crumbs all over the car. The driver, a self-admitted neat freak, tried to handle it politely, repeatedly asking his coworker to clean up after himself. Despite multiple promises, the mess only grew, with empty cans and wrappers piling up, even attracting ants…