downfader said:
You know slightly on topic, I have often been tempted to build a fake handheld speed camera and don some hiviz and stand by some trouble spots, lol! (common sense prevails on many levels here though)
Going back a few years I used to be involved in Venture Scouts and organised a lot of night hikes for the Scouts.
Usually this involved setting up check points at reasonable locations and manning them in fluorescent jackets so they could find us. Bearing in mind the hikes often went into the wee small hours (getting back to camp about five in the morning) one year year we found ourselves on a bit of a racetrack.
We discovered standing at the brow of the hill holding a silver thermos flask on our shoulder or out in front of us whilst wearing aforementioned jackets made people slow down very very quickly.
Kept the Scouts safe anyway.