It's not a particularly common problem. But it's one I always had to plan for. I was, in effect, always on call. If I was going to be out of town, I had to have

It's not a particularly common problem. But it's one I always had to plan for. I was, in effect, always on call. If I was going to be out of town, I had to have somebody to cover for me. Somebody who was on the list for physical access and knew what to do enough that I could talk them through it.