Question: This question may sound dumb, but nevertheless. When Obi-Wan confronts Anakin on Mustafar, he says "Only a Sith deals in absolutes", and ignites his lightsaber, basically challenging Anakin. The question is, why? Obi-Wan's chosen his ways with the force, why can't Anakin? Most Jedi have already been killed throughout the galaxy, so Obi-Wan doesn't have much else to lose (except one of his only friends left that he's basically trying to discard in a duel). Anakin's trying to use the Dark Side to save Padme, so why can't Obi-Wan just let go of the fact that Anakin has chosen his ways, become a Sith (with Anakin seeing the better-good in it), and just let Anakin get on with his life?