The Older I get the Less I Can Stand Teenagers!

I don't know about all teenagers, but my 16 year old step-son is about to drive me and his dad absolutely crazy. The biggest problem is the 'I know everything and you don't know what you're talking about' attitude. We gave up on trying to explain to him and/or make him understand that's not how life is. Hopefully, in time he will understand. But until then, I think I'll just go crazy.:spaz2: