Unfortunately due to the EU airspace being closed because of the volcanic ash cloud I wasn't able to make it back to Helsinki; I ended up getting stuck in Hong Kong for a night (which was kind of cool; apart from the exceptionally expensive Airport Hotel.)
Yeah, I was lazy and got the closest place, optimistically thinking this might only last a day or two. Finally I decided to get a flight back to New Zealand rather than stay for an unknown period of time in Hong Kong. I don't even want to think about the number of timezones I've crossed in the course of this fiasco... I'm sure the jet-lag will hit hard.
Finnair are offering a refund for unused tickets (once they get around to processing it) so hopefully I will get at least some of my airfair back.
Oh, and if I never hear the words "final boarding call" or "passengers on flight..." again, it will be far too soon.