If you're the type of guy who drives your friends nuts by compulsively obsessing over minor details at lunch, then McDonald's has a deep existential dilemma for you.
In Canada, the fast-food chain is temporarily adding the Big Mac Bacon—a Big Mac, with bacon on it—to its menu, the first change to the sandwich in that country in 50 years. An ad from Cosette puts the new product to the pedant test, which by its very nature requires that anything that can be argued, must be argued.