Fridge Door An HTT metaphor for a wholly presumptive problem: "Someone has left the fridge door open." Mostly this comes up in the Workshop when I need to explain why HTT depends on adventure design, that you can't just march up to the gaming table determined to engage in CTI if the quality of the Problems works actively against that. To solve a left-open fridge door "creatively" requires an out-of-character arbitrariness, since any "creative" solution would be unnatural in-world, barring extraordinary circumstances. And so, the GM must prepare either high-trust problems of real Quality, or (if we're being silly) prepare the aforesaid extraordinary circumstances. Either way, that's adventure design. A close cousin to the Row of Nails.