a word of mouth story (which may have grown in the telling)
A guy headed up into the Cairngorms to go winter climbing. He slipped awkwardly and broke his leg. Fortunately he had his mobile phone with him. He rang mountain rescue, who ascertained that he had all the right gear with him and he know where he was; the forecast was good but they were unable to reach him at that time and would send the helicopter in the morning.
Unbeknownst to the climber, just over the brow of the hill, out of his line of sight, was another guy who planned to camp out over night. Each was unaware of the other. The camper woke up in the morning feeling a wee bitty cold so he decided to cook himself some toast over his camping stove.
As he was eating his toast he heard the unmistakable sound of the rescue helicopter. He watched the winchman descend and pick up the stranded climber and thought: “Oh dear, there must have been someone out there all night.” However, he didn’t really think much more about it.
The climber however, was very thankful that he’d been found at last. He said to the winchman: “Thank God you came to get me. I was beginning to hallucinate. I thought I could smell toast.”
Be safe and be prepared when heading out in the hills at any time of year, especially winter.