Already? Scottish?

[It's a better reaction than it could have been, but not for the reasons he thought. If anything it feels like the proverbial rug has been pulled out from under him, as the Doctor has to wonder who Jamie's met, if it's really him here twice, which can't mean anything good, or if someone's managed to convince his friend that they're him.]

What did he look like? I don't suppose he had a hat and cardigan, maybe an umbrella? I think I had a bit of an accent then...