[ritchiebaby]

One country I have experience of is Cyprus, where the whole island is officially an EU country, except that the North (Turkish) is not recognised by the EU, whereas the South (Greek) is. The border situation is haphazard to say the least, to the extent that my friend and his wife (residents in the South) regularly travel to the North for their weekly shopping, because it's cheaper. On one occasion my friend travelled to the North on his own and showed their 2 passports (permanently kept in the car) by virtue of habit to the border guard, who let him through. Only on the home journey did the border guard query that he was on his own.

I'm sure that will be the scenario on the future Scotland/England border, indeed there is currently a "booze cruise" run between Berwickshire and Berwick to get round the SNP minimum alcohol pricing legislation.