Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

It's that kind of comment that really makes my blood run cold though - because it clearly indicates the thought processes going on behind the wheel are not those of the sort of person who can take responsibility for driving a car.

agreed.
apply for a job in banking and the chances are you'll be subjected to psychometric testing to establish if you're likely to fuck up their processes or try to defraud them. apply for a licence to pilot a ton of steel at speed on the public highway and you only have to demonstrate recognition of some road signs and the ability to parallel park. not that i would welcome yet more state interference in our lives but it seems to make sense that there should be psychometric testing as part of the driving test process with provision for disqualification if you hit too many of the "too much of a cunt to be allowed behind the wheel" or "unable to accept accountability for own actions" metrics.