Reminds me of a bit from ‘The Fires of Heaven’ by Robert Jordan.

> "I once saw a man hanging from a cliff. The brink was crumbling under his fingers, and the only thing near enough to grasp was a tuft of grass, a few long blades with roots barely clinging to the rock. The only chance he had of climbing back up on the cliff. So he grabbed it." His abrupt chuckle held no mirth. "He had to know it would pull free."