Charlie DID sacrifice himself when Jack was trapped in the cave . Remember ??? Even when he was going thru the worst of the withdrawal he wanted to do something good . He crawled in there and ultimately did help Jack get out . I love Charlie b/c he has overcome his addiction and even in his flashbacks he had faith ....

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If I could wake up in a differant place , at a differant time , could I wake up as a differant person ? ? ? Tyler Durden