@ahnlak The lock’s only died once. The last time, I lost my keys, and after that hassle, thought it might be a good idea to prepare…
On the plus side, the last time anything like this happened, I put the number of a good locksmith in my phone, and now it’s all sorted.
Gah. Only just back in my house after I took a quick shopping trip and returned to find my key no longer worked in my front door.

Cornwallis Windows - threesixfive.gothick.org.uk/2016/11/23/cor… pic.twitter.com/tuZLuMleLl
@porthjess Someone has surely already invented the gin cookie.