In France… wide and fairly straight D road, speed limit 80kph (used to be 90kph until a couple of years ago). No traffic.
I’m going along a little over the 80kph,car catches me up and proceeds to sit a few feet off my back bumper, After a little bit I gradually slow down expecting them to overtake, get down to about 40kph, still just sitting there, I then hard accelerate to about 100kph, then settle down to 80kph again, and they’re back a couple of feet off the rear bumper. after a bit I repeat the slow down then they still stay there I repeat the acceleration….. btw, just about no traffic on the road in either direction.
Now totally pissed off I take the speed gradually down to about 15kph (it’s become quite entertaining), they still sit there, slow down to nearly stopped and after a while they actually overtake looking very peeved.