Well....the British are known to rather eccentric at times....and they do drive on the wrong side of the road to boot.
I once observed an Air Force OV-10 FAC do just that....joined the queue over a bad place with all sorts of Army Helicopters stacked up and turning left....to be met with the OV-10 turning right.
Result....a Mid-Air between a Huey Cobra Gunship and the Bronco.
Two dead Helicopter Pilots and a sudden need for.a SAR Rescue of the OV-10 Pilot and Observer.