I had one of these experiences when I was driving from Hungary to Austria.  I was just blindly following the GPS, which started taking me down some very small roads with lots of turns.  Since I had no idea where I was going I didn&#x27;t question it.<p>I eventually stumbled upon a sign, in German, that was big and red, and I knew I was on the border between Hungary and Austria.  I wasn&#x27;t sure what the sign said, and at the time I didn&#x27;t realize the two countries had an open border.  I looked around for police like cars, and then quickly crossed the border, eventually reaching my destination just inside Austria.<p>As it turns out the sign just said &quot;no vehicles over two metric tons&quot;, and that somehow I had gotten of the highway which had a very nice border crossing.<p>But a few years earlier and that mistake would have gotten me arrested!