There's nothing like being the only person in a big hotel to take a fire alarm seriously, trotting down six floors and finding yourself in a Houston carpark in your jammies, surrounded by guffawing hotel staff... Then having to do the Strut of Death back through the lobby. Thing is, the bells had been ringing for 10 minutes before the "This is a Drill for Staff Only" PA started up. But I was the only person who paid any attention. Am I paranoid, over-cautious, or just sensible?