Man, it's a good thing that when I finish writing lectures on my home computer for use at Warwick the next day, I not only upload them onto the University server over their intranet, but also email them to myself, just in case.

Because it means that when I do something completely and utterly stupid, like upload two copies of my lecture notes onto the server, instead of one copy of the notes and one copy of the handout, I still have another place where I've put the files, and another chance of having got it right. Which, thankfully, I did.

*blood pressure slowly normalising*