Bluehorseshoe's thread made me think of this question. It's an interesting philosophical question.
Say you suddenly lucked into something where you went from making your just-squeeze-by salary to suddenly having way more, like now you're making 5 million per or whatever... Just what percentage do you think you would really give away and how would you parse it out?
Since there's no effing way this would ever happen to any of us, it's at least interesting to ponder. I'm betting that greed would settle in for most of you/us, and it would be harder than you think to just say "Hey, man, here, take 100,000 bucks of my money."