Glad he is out!
A few weeks ago, on holiday in Spain, middle of the night. DS (6) got up to use the toilet, and locked the door (he is a holy terror for anything mechanical).
As always, I woke when I heard him moving around (very light sleeper), and after a while, got up to check he was alright. The lock mechanism had come off in his hand, and he couldn't unlock the door.
The outer part of the lock was on the floor outside, and I could see the square spindle.
So, got my tweezers (nice, strong steel ones, chin hairs be damned), and managed to turn the square spindle, get DS out and then both of us have a little relief cry.
Completely disassembled the lock. Back to bed.
Next morning, DH "Errrr, why is the lock gone?"
Edited for SPAG