The main thing I took from the course:
Two things; I didn't know what a dual carriageway was, didn't know it could be a single lane.
And this; we were shown this picture, but at night with no traffic or pedestrians about, it was well lit:
We were asked what we thought was a safe speed at 1am, (the time the photo was taken), not the legal speed, which we all knew to be 30mph, but what we would consider to be safe, driving in the direction of the BMW.
40-45 was my answer, most people answered the same, some less, some more, but my answer was the majority answer.
As it happens this road was close to the place where the course was taking place, most of us recognised it and had driven down it many times, 30mph when it is empty is a snail's pace on such a wide road.
We were then shown a smashed up boy-racer's Nova.
At the corner at the top of the picture is this pedestrian crossing with lights, a Pelican Crossing(?):
To the left of which is an alleyway going up steep steps to Guildford Castle.
A man in his 20's came flying out of there without stopping and the Nova smashed in to him, killing him instantly. We saw pictures of the aftermath, his shoes in the road, those little yellow triangles the police lay out on the road and so on. We saw a picture of the Nova all smashed up with the dead man's dent in in, it had Kev and Shaz or whatever across the windscreen, we were asked to think about the driver, who we all agreed was an inexperienced idiot.
Only it wasn't, it was the idiot's mum, who had borrowed his car for the night to go to the cinema and then a pizza. She was sober. She was 49 years old and ran a small business which provided a decent standard of living for her. She was doing 43 mph. She was sent to prison for 7 years.
The dead man was in the wrong, he ran out without stopping or looking. Had she been doing 30mph he quite likely would still have been killed, or at least suffered life changing injuries, but she would not have even been nicked. But she was speeding and as a result was found to be fully culpable for his death.
That changed the way I drive. Selfish, perhaps, but effective.