The defining feature of the iPhone 4S would certainly find its way to an Apple advertisement soon enough. Siri has captivated the Internet with its human-like attitude, vast knowledge of cultural geek references, and its continued refusal for your hand in marriage. However, our fun in outsmarting the voice assistant is trumped by actual real life use cases. Flat tires, bowties, meetings, and locking yourself out of your home? All are subjects of Apple’s debut ad for the iPhone 4S (catch it after the break).