All four brothers carry around so much angst, it's fun to hit them in their sore spots sometimes: for Dean and Peter, it's guilt over how they might be holding their brothers back, for Sam and Nathan it's guilt over not wanting to lose their brothers no matter what. It's all very ironic, really. And it can certainly make them say nasty things!

But Nathan and Sam are alike in so many ways, what with their smarts and their geekery. It takes a nerd to know one.

I'm glad you like Molly's little guest appearance. She really got more than she bargained for when she went looking for Peter! Oh dear... Probably scarred for life...

Sorry to be keeping you up past your bedtime :D