This is the big Sam part right here. He wants to leave, wants to go and have his own life and be safe but it's not like it's easy for him. Dean and John and that car and that truck are everything he knows; they're his entire life and he's walking away from it. He's scared and alone and his Dad just told him it was the end. Gave him a choice and said, "be your own man alone or stay and be ours." And Sam chose. And it hurt.

Yes, exactly. He's *eighteen*, he's a kid, he's the *baby* he's been sheltered to an extent all his life and he *knows* he has to do this but he's still scared out of his mind.

And too damn stubborn to admit it.
Nice commentary.