The forces that form conduit. The locks that keep the curious out. The drops – free and clear, save for high amperage Hubbel plugs you’re unlikely to carry. No charging mobiles here, you can’t plug in your hair dryer – but you could jack in a power hacksaw… or stage lighting. Any exposed end can compromise a system, at least in a negative way. It’s funny, you could short a drop and turn it off, blowing the breaker, but you couldn’t turn it back on without bolt cutters.