Probably the same driver mentality as the one which decided to overtake me on the Felixstowe dock spur roundabout yesterday while throwing a large amount of rubbish out his window onto the roundabout at the same time. Or, whilst heading to Felixstowe this morning having passed 2 jacknifed trucks, seeing 4 travelling no more than a meter from the rear of the one in front.
And drivers are still surprised they get a bad name!!