I had a really enjoyable drive this morning, sticking to the 20 limit in front of people with patience disorders.
A bmw then a Range Rover (white, naturally) 2ft from my bumper, swerving like they want to overtake and gesticulating frantically.
I'm not sure why they're so desperate to get to the next traffic light queue four seconds earlier, but their inability to function normally really entertains me.
I think i'll experiment with 18mph next.