The Cameron Toll roundabout. Or rather people's inability to follow simple instructions at it, particularly when coming from Peffermill direction.

The left lane is both signed and marked 'store and other routes'. If you are going up Old Dalkeith Road or into Cameron Toll then you should be in this lane. The right lane is clearly marked and signed 'City Centre and Old Town'. Taking the 3rd exit up towards Lady Road or going round to Dalkeith Road? This is for you. It's so ****ing simple but every time you are in the right lane you get at least one twat flying up the left of you on the roundabout as you try to merge into the correct lane. They inevitably glare and shout at you when you beep them to warn them you are there completely oblivious to the fact they can't ****ing drive properly.