We like fairness, don't we folks? The oldly new idea that if our PCs fall in a pit, it's because we the players failed some minor challenge, whether of preparedness or of observation of the DM's description. That's fundamental to "skill"-based play, the idea that your decisions affect the outcome for your guy. But there's some give there-- how informed does your decision have to be, and how fitting the consequence for the occasional failure?
