When I was in Vegas with some mates this woman turned round and said 'are you from Australia or New Zeeland?' and I was just like 'ehhhh.....England'. I've never lived anywhere but the south of the UK so have a fairly posh sound accent!
I got the same thing when i was out in San Francisco...
Was at the WWDC'10 conference and some yank piped up, "These Australians are everywhere, where you from sonny, Australia?"
I usually confuse them even more and say "I'm Cornish, thanks..."
My Cornish accent comes out when I'm angry or hang around people who are Cornish.

I have tried not the pick it up, but it comes out a little when drinking
"
(I don't work in a sandwich shop
