I have seen some funny stuff. Usually accidents are less lethal though and that is the goal. I remember being at a seminar a couple years ago and the discussion was about rougly 40k people killed in accidents at intersections over a period of time. If new designs could but accidents by 70% it would save 25k lives potentially.It’s fun watching people who don’t know how to use them though or just being in Saudi and watching the complete disregard for all things traffic safety related.