Prior to the design-and-installation processes, this camera angle revealed how steep the slope was. In a couple places, it was nearly 90 degrees, but varied. Much of it was so dangerous that I suggested fencing that might keep people from falling a great distance to serious injury or death, but the clients were not wanting a fence for a variety of excellent reasons. We decided early on that densely planted native and drought tolerant woody shrubs would be the way to go. Once established, such plants would help prevent threats from the laws of gravity, drunkenness, wanderlust, and ignorance.