Vehicle:
Took some friends for a drive around the block. The rear door, which I hadn't opened before, took a bit of force to open, but then wouldn't close. The catch wasn't catching.
Stripped down the door card. Couldn't get the window winder off, as it was too closely fitted, but in the end I managed to work around it.
The door lock mechanism was gunged up with 33 year old gooey grease. Cleaned it up, applied copious amounts of WD-40, some grease and all working well now.
Door handle not replaced properly.