In Iraq we had a private security detail out of Britain. Every now and then I'd get on a team that had a Scotsman on it. He'd talk, I'd look at a Brit who would tell me what the Scotsman had said...
..I spent 3 years in the UK....took me months to understand the Cockney accent...
http://www.youtube.com/watch?v=LnjGNJ5JL8w