I recently completed a very long bike ride. So long, that I cycled right through a Saturday night into Sunday morning.
I traveled a mix of midwestern rural backroads and state routes.
I wore bright neon clothing, had reflective materials and several lights, so I assume I was fairly visible to anyone I met on the road.
Just after dark, many oncoming drivers took to "honking" their horns as they approached me. Sometimes, shouts and other noises could be heard from the cars.
Since most the drivers had their "highbeams" on --and did not lower them in most cases I assume they could makeout that I was riding a bicycle along theopposite edge of the road.
What was the purpose of their "signaling" me by horn and yelling?