Once, I was riding in the countryside outside Kent, Ohio when a car intentionally tried to sideswipe me....then they slowed down and started yelling about kicking my a@@...
There was a side road I swerved down...I rode about 50yds down the road while watching them back up and begin to tear down the unpaved gravel road.
That day, I had brought along a small 380 1911-style pistol to try out in the woods. I jumped off my bike and pulled it out, racking the slide...
The car stopped about 20yds away, reversed, and tore out of there fast.
Another time, a guy started harassing me in a mini van...he was yelling at me that bikes don't obey traffic rules....
I toyed with him for a while, jumping curbs, turning around, and laughing as he tried to wrestle the mini van around....
Eventually, I jumped off my bike....he pulled up and jumped out holding a length of thick steel cable a foot long with tape for a handle....as he came at me, I picked up my bike and held the chain ring in his face, which made him think twice about trying to hit me....
He took off. A police car showed up right after. I gave him a description of the guy, license number, and told him about the improvised cable-club.
The cop took off after him. Never heard if he was caught or not.
These two incidents took place twenty years apart. One in open country, one in the middle of a safe suburbia neighborhood.