oh lawdy, don't get your hopes up too much people, it's not THAT many stories.
let met think...
well, one of my players, longtime friend, great guy... is not the best roleplayer. he knows it, i know it, everyone in our group knows it.
at first, we had no idea what to call him, as he would flit from alignment to alignment depending on the situation. we eventually settled on "morally ambiguous"
The first time we really noticed it was, a couple years back, I was running "the sunless citadel" for my group. It's a low-level 3.0 adventure. Not a very good adventure, either, but it's a fun dungeon romp, if that's all you're looking for.
Well, said player was playing a rogue with a shortbow. (He also really likes playing a ranged rogue. Three campaigns in a row really.) But of course, he had daggers as a backup. Well, at one point in the campaign, you come across a small encampment of goblins: guards working for the BBEG. Most are only doing it out of fear and really don't want to, so there's the opportunity for RP.
So what does he do? Well, sneaks in to the barracks, murders several of them in their sleep, and leaves their bodies in their cots. He then goes to another room, wakes up some of the goblins, and tries to parley with them for information. He lets drop that he saw the other goblins got killed, rolls a MASSIVE bluff, and then...
Genuinely feels bad about massacring the goblins before. But doesn't tell the new group! Oh no, that would be bad. Instead, he "adopts" them in to the party (and inadvertently gets them killed). He holds a vigil for the new group of goblins. But not the old.