What I was mostly referring to is when a player takes control of other players' characters simply for the sake of making his little side-story as big and "epic" as possible, because he wants the RPG to be his own story.
I will not deny that an RPG has a story, however, it is not a story in and of itself, for one player to write and others to occasionally contribute.
Wait... Were you around in TFDO for that character Night Viper? He's probably the best example of that.
That was ViperTX1's charrie, right?
No, TNoA. Both were similar though...