Note to all-
Door fixed. For anyoen else who is fool enough to let their mate both pull on the interior release handle, who them locks the car at the same moment, thus leaving the pull handle stuck out, and the door pin down....
Here's how to sort it.
1 Wiggle door release handle (interior) and at the same time lock and unlock the car via either the remote or the driver's door. This is the 'in the lap of the Gods' moment. Mine went after barely a minute, you may struggle intil hell freezes over. You're removing a bit of tension from the mechanism, thus allowing the door pin to pop up again.
2 Remove doorcard, as described elsewhere

3 Remove lock mechanism, as described elsewhere and in Haynes book of lies. Beware, the appropriate picture to aid releasing the rod from the interior handle and the lock itself is an the next page!

Hint - you ping it with a flat driver.
4 You will see two spring-loaded rocking latches. One above the other. These belong the other way round, so lift the upper, click/lever the
lower one with a screwdriver, so this is now where it belongs, above 'tother 'un.
5 If you now reassemble (as I did) the lock will simply jam again. Tease with pliers the
lower latch (which
was the upper latch until you clicked it back in place). Tease it so that even with pretty unreasonable force, the lower latch can't pop out of place again and get 'past' the upper latch.
6 Reassembly is the reversal of removal. Taking care not to drop any tools. Also be wary of old ladies walking by the driveway, who very unhelpfully say things like 'ooh, are you working on the car?' - this when you have the entire door card off, and your hand inside wrestling with a plug and socket
