@OhFuckOffWithTheBubbleBollocks, I sympathise massively - that's really rubbish.
@LivinLaVidaLoki, I'm so sorry about your aunt.
As an indication of generally increasing sanity, I'm happy to say that I've put a message round my team at work about getting back to the office as soon as possible, and such replies as I've had have been very positive. They're brilliant, and they've worked so hard to make this shit situation work for the organisation, but I'm really aware that they're all running low on energy at the moment and they need me to have a plan.