(Disclaimer: Personal bad experience with bicyclist)
Some nut in our neighborhood rode his bicycle on the normal driving lanes, instead of using the designated bike lane.
During rush hour.
Which he tied up the traffic, other cars of course then tried to change their lanes dangerously, almost resulted in several accidents.
As a bicyclist (we love biking), I have to say that some bike enthusiasts are rude. We were on a bike trail, so when my youngest son chain got dechained, I fixed it. While I was doing it, some bike enthusiast came biking by and told me to move over he would run over my boys next time.He was going in the opposite direction, so I was glad. This guy looked like something you see at the Tour de France, spandex bike outfit. We were in shorts and t shirts.