you'll be selling books at the airport

and the latter question can be answered in the following way: even though I'm doing quite possibly the least exciting things ever at this moment in time (studying for exams, writing research papers, whiling away the hours at my internship, watching excessive episodes of Parks ... To alleviate this newfound boredom, the airport has progressed to become a veritable, glorified shopping mall at which one can happen to catch a flight to nearly anywhere in the world. ...