One time, I was going around a bend in the trail right next to a river. The trail at that particular part had a tree that leaned towards the water and needed to be ducked around, and the trail itself was sloped and about 5 feet up off the river. Right as I rounded it, I yelled to my buddy behind me. I had gotten halfway through "Be careful, tricky turn, don't fall in!" when I realized that I had leaned too far and was on my way over the edge head first.
Is that what you meant?