I've given up on expecting anyone other than my horse to behave. I regularly have cyclists, joggers, and drivers flying past without a care in the world.
Last month, I was taking my three-year old on an in-hand walk on a singletrack, accompanied by my friend's 25-year old WB. Someone at a small, private farmyard we passed was lunging a horse, and it was going nuts. Dragon snorting, bucking, tail flagging, the works. Needless to say, our horses found this quite exciting. The 25-year old was lively indeed, and my youngster was passaging sideways down the road but not doing anything worse than that. I was, however, focused on keeping that from escalating. Suddenly, a cyclist whizzed past us, squeezing through the narrow gap between my bouncy, sideways horse and a large hedge, at a rate of knots. It startled me. I yelped, loudly, "Holy f*ck, I didn't see that guy!" Maybe he heard me. Luckily, my horse thinks idiot cyclists are boring and pedestrian, so she didn't react to him. But what a fanny. You don't have to be bloody Carl Hester to see that a couple horses are dancing and snorting around the road.