No one has ever said that raising teenagers is for the faint of heart. Having taught high school for a number of years, I'm no stranger to witnessing teenage angst. Being a teacher gave me the unique experience of listening to students talk about their relationships with their parents in a very real and emotional way. And while all parents genuinely want what's best for their children, teenagers seem to talk in a completely different language that's coded with a weight of meaning. To ensure that your relationship remains as strong as ever, here are 10 nonnegotiable rules for raising a teenager.