There are two broad categories of climbing risk: subjective hazards and objective hazards. Subjective hazards are risks intrinsic to the first person. These are things like failing to properly tie a knot, pack a jacket or place the right protective equipment.
Objective hazards are everything else. They include things like loose rock, weather, avalanches and equipment malfunction.
Objective hazards may be avoided. One may choose to stay home if the weather looks bad.
Objective hazards may be engaged. One may choose to go out despite the 110 degree temperature, but choose to go to a shady crag at high altitude.
Objective hazards may be accepted. One may stick with the plan despite the blazing heat and just be prepared to climb poorly and suffer.
What one may not do with an objective hazard is control it. It should be obvious that weather, snow, loose rock, misguided guidebooks, and other people are all objective hazards.
However, although we readily accept natural forces and conditions of participation as objective hazards, we generally do not regard other people as objective hazards.
We count on others to behave in certain ways and blame them when they do not. We don’t make our best estimate of another’s capacity, plan accordingly, and then accept what we get. We expect performance according to role, which is characteristic of subjective hazards, at least when they do not prove hazardous.
This is insanity.