I have always believed Snape was really not a good guy. But I don't think he did what he did, just because he is a lying traitor and complete bastard. I believe he did it because Dumbleddore had planned it out to happen in just such an emergency. I can even see Snape being placed under an Unbreakable vow (which would only be made stronger by the additional UV he took with 'Cissy' Malfoy) to do it from the time he came to work at Hogwarts.
I think Dumbledore knew he was going to die from drinking "the Green potion of Death" out of "the Birdbath-O-Doom". So, when Dumbledore says, "Serverus...Please..." he isn't pleading to be spared, In fact he is asking to be given a quick exit. He is in effect directing Snape kill him and fulfill this role in a plan Dumbledore has to have for such a crisis...
I believe this plan would do multiple things: I believe it will add even more magical protection to Harry., It will lull Voldemort into a sense of overconfidence that he can't be beaten now., And It give Harry another extreme motivation to fight.
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On the other hand....
Date: 2005-07-18 12:47 am (UTC)I think Dumbledore knew he was going to die from drinking "the Green potion of Death" out of "the Birdbath-O-Doom". So, when Dumbledore says, "Serverus...Please..." he isn't pleading to be spared, In fact he is asking to be given a quick exit. He is in effect directing Snape kill him and fulfill this role in a plan Dumbledore has to have for such a crisis...
I believe this plan would do multiple things: I believe it will add even more magical protection to Harry., It will lull Voldemort into a sense of overconfidence that he can't be beaten now., And It give Harry another extreme motivation to fight.