This is a short video of Emily Koford almost falling into the Grand Canyon while backing up to take a picture of her mom Erin on the south rim. The moment was captured by fellow visitor Kevin "Holy!" Fox from a further vantage point. Me? You'd never see me that close to the edge. I don't trust myself. Neither my balance nor my brain telling me it's cool to jump, one of Gandalf's giant eagle friends will save you.
Keep going for the full video.
Thanks to becca b, who agrees you'd think a person would watch where they're going, especially when one wrong step means certain death.