Remove the lock over-ride facility, delay timer and deadbolt completely. Make it a code entry, changed daily or weekly.
Sure, in theory a terrorist could hold a gun or knife to a crewmember's head to get the entry code, but with so much airport security there are not too many terrorist acts attempted by passengers any more. Serious terrorists would be more likely to use a missile aimed from a hotel or apartment near the airport.
A deranged passenger could be seen as a potential threat, but these days one would hope that other crew and passengers would decisively deal with that. Ditto with a pilot who flips out - if access to the cockpit is available people are not going to sit there all passive while one pilot is in the dunny and the other engages Stuka mode.
One armed Sky Marshall in any aircraft is a baaad idea - as someone suggested, he could be suicidal himself. But three guards scattered around the cabin would work. Post a warning on every ticket and include it in the cabin crew briefing: "bogans - sorry, guests - behaving badly may be shot". Hey, we could even get back to the days when we invited kids with MILFs up front. Not too many of those ever hijacked an aeroplane.
Last edited by Mach E Avelli; 31st Mar 2015 at 09:21.