I honestly think people just dont know how to use roundabouts.
We had an accident last xmas at a roundabout in dundee on our way up to Aberdeen, because some idiot decided to go all the way round in the left hand lane.
Adam put a diagram of it up on a forum he uses and so many people replied who had no idea what lanes they should be in, how they should come off the roundabout, how to indicate....
And the amount of people that said 'oh I get really nervous when I'm approaching a roundabout' or 'I hate roundabouts'.....I'm sorry, but you shouldnt have a license then
Rant over lol