Does telling someone to hurry up not count as speaking directly to them? Hurry up, Iain and Margaret sounds like both Iain and Margaret are being spoken to directly, does the usual rules not apply here for some reason? I'm confused now..
Huh. Good point. Not sure where my brain was back then. I would guess that because the first name in the list is Iain, the "a" would still be absent. Anyone know if the second name in a group being addressed would have the "a," or just the first?