And for the robber, crime is a lot more common than he seems to think it is. Metal theft, for example, is extremely frequent: it is rare that an industrial faci

And for the robber, crime is a lot more common than he seems to think it is. Metal theft, for example, is extremely frequent: it is rare that an industrial facility would have so little theft that such a proposed heuristic would be reasonable. If crime were that low, then the guard's position doesn't exist anyway. So then we're just left with an empty thought exercise with no relation to reality, as an argument for how we should think about reality.