Imagine if we had the technology to, when a laptop was in a hibernated or off state to use some sort of a mechanism to physically disconnect the battery. I know this is absolutely crazy but it seems to me that this would solve these problems in a foolproof way that wouldn't lead to the situation where your mission critical piece of equipment has killed it's battery, or itself entirely because it decided to do something you didn't want. Imagine a physical device capable of making and unmaking an electrical connection based on the angle or position of a physical component that is then unable to be superseded by bad programming. Imagine.