The other class of issues is due to a clash of paradigms within a group, be it between fellow players or a GM and a player. As an extreme example, imagine a GM presenting a puzzle to players, only to have them declare they roll Intelligence to solve it (GM expects FGI, players go with AGM). Alternatively, imagine players flooding a dungeon with a decanter of endless water - an FGI solution to an AGM problem. And it's not just the players who can be the cause of a clash: the infamous tucker's kobolds can be seen as FGI used by GM (with themselves being the fiat arbiter, never a good sign) ag…