Does anyone want a 15 yr old boy? Cheap? (Rant)
Speaking from experience (I've been a 15 yr old boy before), we'll get away with every last shred that we can if you let us. But you need to keep the faith; your frustration will be repaid over and over again when he's grown and out of your hair - you'll be proud of what you've accomplished (speaking from experience again). Just keep at it, take a few deep breaths now and again, and every once in a while, break out his baby pictures and realize how much of a miracle he was when he was born. That'll get you right back on track with plenty of dedication to spare - I promise!
S