I was scrambling on a mountain side in England's Lake District. It was one of two ways that I had found into the bar of an Open University summer school. I had made the trips several times already but on each occasion I found myself back on the mountainside.
A party of Americans approached, they asked if this was the only way; before I could answer I felt a rock slipping, I screamed at them to get out of the way. Calmly I took hold of the sliding slab, I steadied it's progress, then slowly guided it to rest, against and between two, more solid outcrops.