One think that counted upon is human stupidity and stuborness (sp). People check in their minds when they arrive at an airport. At a trip last October one middle age lady read her book during the safety demonstration and when we taxied out she prayed for a safe flight.
the same went with a similar case as I was explaining to a drama teacher why she should remain seated as long as the engines run (because of the risk of fire etc). SHe said sorry I teach drama and I can't understand the safety issues.
Unless you hand out cash or drink vouchers to attract attention, you can count on people simply ignoring the safety briefing. Does any one know if Southwest with their special humorous style attract more attention from the SLF?
Rwy in Sight