There should be penalty points/ re-training for not driving on the left when not overtaking. Far more dangerous than doing 10 miles an hour over the speed limit as it forces other people like yourself to drive inappropriately.

As I biker (motorbike not a lycra clad bellend) I'm always aware that I'll come off worse in a coming together so am always riding defensively and am staggered at the constant ignorance and ineptitude of 90% of motorists.