YEESH!
Those years were tough enough when I lived though 'em, tougher when my son did. I can hardly imagine what it's like for just a normal average, basically good kid to just survive the middle school/high school years and not come out of it horribly wounded in some way.
We can be involved, positive, supportive, all of those things, and I'm sure that the more of that we do, the better things can turn out, but, man! That's a vicious time and place and I wouldn't want to have to live through it again.