apparently this is a true story the captain and co pilot were flying then the captain decide to take a walk to visit the passengers later the co-pilot need to relive himself he waited and waited for the captain to return he ducked out of the cockpit and into the lavatory after he was finished -he found out he was locked out of the cockpit -he contacted the captain and found he too left the cockpit with out his keys - they had to use a fire ax to get back to the cockpit