Comment by ty6853

Sure, the other effects is that they're much more likely to be driving at night, overextended their waking hours, distracted by friends / a date / a prostitute, and driving a route that they do not normally drive.

How could you not be 10x more likely to crash than the nurse getting off at 2am who has driven the route a thousand times and knows all the bad blind spots / bad intersections / is still well within her normal waking hours. That is much closer to the normal profile of the sober people who are out driving during prime drinking hours.