I've been a dad for awhile. I've noticed that certain things don't change about a child, no matter what stage of development they're in. When they're really small, just learning how to walk, you always have to tell them the same thing over and over again: 'Watch out. Don't touch that. Don't put that in your mouth.' Now my daughter is almost a teenager. Are we all on the same page on that? Because I really don't want to have to draw a diagram for that one.