Don't know if this old news as I remember a story similar a while back but in case it is not.....

CANUCK AVIATION ACTIVITIES II: The pilot of an Air Canada Jazz flight
from Ottawa to Winnipeg stepped out 20 minutes from Winnipeg to go to
the restroom. When he finished, he found he was locked out of the
cockpit and couldn't get back in to land the plane. Passengers watched
as the captain banged on the cockpit door for 10 minutes, but
apparently neither the first officer nor the flight attendant in the
cockpit with him could get the door open. The pilot finally took the
door off its hinges in time to land the plane. Air Canada admitted the
incident did occur, but said that a pilot lockout is a "non-reportable
incident" that doesn't have to be reported to Transport Canada. (Ottawa
Citizen) ...Don't worry: the next terrorist that tries taking the
cockpit door off its hinges won't bother to report it either.