In several dozen rentals dating back to 1963 in the UK, Netherlamds, France, Germany, Spain and Italy that I recall, I've nere been asked for one, but had to show my Texas DL several times over the years, the last in Florence a couple of years ago when I sneaked through the barriers into the plaza in front of the Duomo to unload a lot of luggage and a wife with a sprained ankle. The Carabinieri was far easier to convince of the necessity of my intrusion (using my 1960s era Shore Patrol Italian) than was the crazed waiter at the sidewalk cafe who felt I had violated Italian airspece. I hadn't felt as soundly word-thrashed since the A4 pilots stole the bronze 18th century cannon (small) from the entrance of the Italian Navy Officers' mess in Taranto in 1963, a minor international incident with greater repercussions than the Swordfish attack in 1940 in the same naval port.