Piltdown Man, when you say...
and then leave ourselves. My colleague through the front door and me through the rear.
...do I take this to mean that you are a captain and that, in such a role, you are expected/expect to leave the aircraft from the rear door in order to pass through the cabin first to check that all passengers and cabin crew have left before you? Is this a standard procedure or is it simply considered good command etiquette?