When we walked into the building, there was another guard station in the lobby, with the usual book for after-hours sign-ins. I told the guard I had a report that needed to be ready in the morning, and this friend of mine wanted to see the plant. "He's crazy about helicopters," I said. "Thinks he wants to learn to pilot one." He asked me for my badge. I reached into a pocket, then patted around and said I must have left it in car; I'll go get it. I said, "It'll take about ten minutes." He said, "Never mind, it's okay, just sign in."