Kathy and I were heading to Dayton Ohio on the Max about 18 years ago. We were riding between Cleveland and Columbus on the interstate, when this elderly African American gentlemen in one of those really blinged out Caddys starts tailgating me - REALLY close. I accelerated away from him, but he caught up to me a few miles later, and got even closer. I slowed a bit, and the ******* went off the road onto the shoulder and passed me on the left. Time to hit the boost... He caught up to me yet again, and got even closer - blowing the horn at me, and grinning.
I have a friend who carried a pool ball in his bag, to show tailgaters what is about to come crashing through the windshield of their car if they don't back off. This usually worked.
Not carrying a pool ball, I waited till he was very close to me again, and threw a handful of change directly onto his windshield. He stopped like he hit a brick wall, and we never saw him again.
I carry a couple 3/4" nuts with me now - just in case..