Right, exactly. I have a younger brother - four years younger, and we may not have grown up on the road fighting monsters, but I think I know how Dean feels sometimes. My brother is 18 and I still feel like I have to protect him sometimes, I forget to let him make mistakes on his own. Same thing with Dean. And Sam needs to rebel against that a little, has been doing that from the start. It's about finding a balance, which is one of the reasons I'm so excited about his new season. Sam's been off hunting on his own - well, with the Campbells, but not with Dean, so it might as well be on his own - and now I think they have to learn how to be together again without pushing or pulling at each other too hard.