Damn it. So much for that. The truth was better than a lie with this question, tempting as the lie was.

"Lucifer. I stood up to him so that Sam and Dean could escape and he stabbed me. So next time you get pissed at me, imagine little Samantha getting stabbed by you for someone else, because that's what I did for your oafish male counterpart, Princess." Well, he assumed her Sam was a girl, too, but the name fit either way.