"See, this is a bit trickier than a force field," Helen explained. "In that it's not a force field that stops you from escaping. It's the environment proper. Every time you try, some sort of animal will attack you or you'll forget what you're doing, something of that ilk. I'm happy to go out there with you and make a go of it, you see, but I doubt we'll be any more successful than previous attempts."