The electricians were back today, adding switches everywhere so that there is now no way to traverse the house in the dark unless you really want to.
As a result the power did keep disappearing from underneath me. But once again, I was thankful for my trusty laptop which cares not about hour-long disruptions to its supply.
Sadly, once again, the router was the weak link. Still tethering is designed for these eventualities - so that apart from missing out on a single video chat, my day proceeded as normal.
Ah, the magic of technology. It keeps on working even when it doesn't work.
[Image credit: Ken Bosma]