I have been seeing people drive the opposite way on a highway on the shoulder of the road to not sit in traffic. I have seen this many times in the past few years and never saw such flagrant dangerous selfish (in terms of no regards for societal laws) behavior before.
I have seen a car slow down and reverse in one of the inner lanes, because they missed the exit. This was at night in Milano. There was almost no traffic, we passed them from the innermost lane, but there were 2 more lanes to them to the right, all empty.