I am single so no teen(s) yet but I do work with people who are parents. Today my co-worker told me about his teen son spending a lot of time outside hanging out with friends and not being home as much. His son's grades are suffering, and he doesn't know what to do. My co-worker is a 54 year old man, very successful in what he does in the company. He spends a lot of time at work because... well, he's more experienced than any of us. I found myself staring at him with not much to say except talk to his kid. Any parents out there that has raised a teen and has better advice? I really want to help the guy but I'm completely clueless as to what to tell him.