The note on treewells is a good point, somewhat covered as have a way out.
Reminds me of getting off my road bike to take a leak on the side of a mountain road. Wearing slippery cleats and plastic soles, I clatter over to a steeply inclined dirt and rock shoulder, pull the lycra out of the way, aim, and.....slip. I start sliding down the bank on my heels, my right hand occupied. I don't know what I'm more concerned about, spraying all over myself or tumbling into a sharp rock. I further lose my balance and tumble quite a ways down and end up pinned against a tree.
Women I ski with are about as proficient as guys, but are more attentive to location affording some privacy. When you see a woman skiing slowly through dense forest, looking around for a place to stop, turn the other direction so she doesn't have to keep retreating deeper into the woods