At a lot intersections in St. John's, left turns are not permitted. Since I'm still getting to know many parts of the city, I will often have a plan in my mind of how to get somewhere that will be foiled by one of these "No Left Turn" intersections. In many cities, one would just make a left turn at the next intersection and then go down that side street and turn left again to get back to the street you originally wanted. In St. John's, this doesn't seem to work most times, as it might be quite far until the next street, or because the city lacks a grid-like pattern.
So I've occasionally found myself performing a manoeuvre I have decided to call "The St. John's Left Turn" (illustrated below in a sketch I made - the path of the vehicle is the green dashes). Since turning left isn't allowed at the intersection, I go straight through it and then make a left turn off the road into the next avaiable parking lot (conveniently, there always seems to be a business with a parking lot of some size not too far from these no-left-turn intersections). I whirl around in the parking lot and then go back on the street in the opposite direction, so as to make a right turn at the intersection on to my desired street. Voilà, a left turn.