So, the work night camping was a great success and I'll be doing it again next week (maybe twice). The headphones on my phone stopped working and I didn't take any other entertainment so I had an early night after cooking a sausage balti and having a bottle of Guinness...
I slept quite well but I did forget to take a pillow! I woke up quite early (5.45) but felt pretty refreshed, boiled the kettle on my Trangia and then made bacon and egg rolls for breakfast.
The washing/toilet block on the campsite was nice and clean and the whole thing was a nice experience, especially when compared to a couple of hours traveling on a busy motorway only to go all the way back a few hours later.
I was all packed up and on the road by 7.30am. I think my cow-orkers think I'm a bit weird...