One November, we were hiking towards Stark's Nest (at the top of Mad River Glen) to spend the night after finding Glen Ellen Lodge drafty and dirty. It was getting dark, and what should we see in the picture window but a naked guy. He disappeared when he saw us, and when we arrived, there was a young couple demurely sitting there. They said they were about to descend to the trailhead, darkness and ice-covered rocks notwithstanding.
We felt kind of bad that we had probably ruined their plans!