I have to add that in my own system (http://www.shadowlords.net) that type of reasoning is also enforced by some mechanics and rules: rolls are only made when GM or the player think that they want to steer the narration their way (else gm and player continue narration with no need of rolls, for example yesterday played a tavern brawl that ended with the players in chains, with just a couple of Rolls). Second rule us that the GM sets the difficulty by rolling and always before the player. That means that if the GM has rolled you MUST now roll. But he Rolls only to initiate an important conflict whose result will be interesting for the fiction