My first question is, "Who's picking on him?" I feel like children model what they learn. And if by some chance your 13 year old isn't picking on him, what about a classmate or someone on the bus? Maybe your child is insecure and feels like he has to pick on before someone picks on him first? Maybe it's just a way to get attention. You said your hubby is out of the picture most of the time. Do you know that your husband is your son's most influencial parent? I say that because the same sex parent is who the child relates to the most. Not that he doesn't love and honor you, but his daddy is his hero. Maybe you need to get your husband plugged into the family more and spend some quality time with your son. If he's getting the attention from his dad, he won't be trying to get it in a negative way from everybody else. I'd start there. If your husband being home isn't possible, then maybe you need to get your son involved in extra curricular things so he can feel good about a talent. Of course, if your husband can't be there to watch, it might create a sort of depression in your son because daddy isn't there. What does your husband do for a living that keeps him away? A family counselor would say it's not even important. If your family is having problems, you close ranks and put the fire out. Does your husband have vacation time? This can get a lot worse if nothing is done. Your husband has got to get into the game.