I'll never forget the time I was deadheading from PDX to SEA. Ding. Ding. The Capt. comes on the PA and does 30 minutes on Mt. St. Helens. No kidding. From sterile cockpit to sterile cockpit. The business pax just were rolling their eyes.

Add that to the redeye dudes from ANC who get to Top of Climb and start in with the 'we've reached cruise, turbulence, seat belts, blah, blah, blah,' to a sleeping cabin.

PAs. Keep them short, simple and only when required. Most frequent fliers (the people who fund your job) don't want to hear it. The people who are most impressed are the one time travelers.