The captain (stuck in the loo) should have requested that the 'helpful passenger' locate one of the flight attendants to approach the cockpit and inform the co-pilot of the predicament. Heavy accent* or not, giving any passenger a security password isn't terribly smart. Someone could jam the toilet door and pretend to be a good Samaritan. Now, he's only got one person on the flight deck left to deal with.
* I just heard this story on the local news, courtesy of a local radio morning talk show (
The Bob Rivers Show with Bob Spike and Joe). Spike O'Neill's talent with 'foreign accents' practically had me ROTFLMAO with his possible interpretations of this incident.