This reminds me of the only time I actually met you: it was at Kit and Oliver's wedding reception - I was introduced to you, we shook hands, and that was about it, since i was distracted by something else going on. I didn't mean to do that, and I've been kicking myself ever since [not just because it must have seemed ruude, but I was genuinely annoyed at having missed an opportunity to talk to you], so now seems as good a time to apologise as any.