I don't think it is common sense. If I want to turn left onto a road that has a median I could jump the median but I'd end up on the right side of the road. I could also be driving on a road with a median and do a U-turn by jumping the median. In both cases I have done something wrong by jumping a median but in neither case did I end up on the wrong side of the road.Well, if you jump the median, wouldn’t you be on the wrong side of the road? Common sense