Isn't it time you guys started driving on the right side of the road. I know you have developed the habit of driving on the wrong side but in general terms very few people tilt at each other on horseback these days.
Unlike much of Europe we were never conquered by Napoleon and his right'ist ideas, in fact he met his Waterloo.
Thus we have remained stubbornly left-hand drivers and long may it remain so...
P.S. Sorry Graham, I see you had the same idea but I only saw your post when mine was posted. Great minds, etc!