On our recent trip to the Balkans, my partner and I visited four countries in eleven days. We started in Croatia, crossed into Montenegro, then Albania, back into Montenegro, then into Bosnia and back to Croatia. So we quickly got used to crossing borders in remote mountain enclaves; I think apart from one time, ours was the only car in the queue at the border posts and a cursory check on our passports was all that was required. Imagine our shock therefore, when we crossed th