Why in tarnation would you want to migrate to London right now, with Brexit looming over those poor islanders like a sneaky fart during a romantic dinner date for two.

At least wait until some sort of certainty has established, or go with the Heisenberg tactic and apply for Irish citizenship as a backup plan.
Normally, yes but I'm in charge of the lighting side of this project and my boss took away most of my labour a couple of weeks ago. It'll still be there waiting for me tomorrow morning, alas.
Well, still got out early and still didn't have to face the music now. Lesser win, but still a win. You gotta take what life throws your way. Just act all surprised tomorrow. "How strange, yesterday everything still worked fine. Boss, looks like I'll be busy today. Can you assign someone to take over my chores, I need to troubleshoot this." Ideally, this means your boss will be stuck doing menial work while you sit on the loo and browse bore.