I forgot one. I had a Pontiac with a misdirected sprayer on the windshield wiper. Sprayed clear over the car, like it was a trunk lid cleaner. Rather than fix it, I just cleaned my windshield everytime I had a tailgater.
One more time, slower traffic move right!
If you must resort to defensive driving in the sense that the best defense is a good offense the key is to get into the other driver's head without them knowing they should be mad. Example, serial tailgater coming from the rear, weaving in and out and such. I let them pass and once they are alongside, bottled up 2 inches behind some other car I just slowly ease over to the left, usually so my tires are ticking the center stripe reflectors. No hollywood quick swerve run them off the road thing, just an imperceptible yet precise drift. The invasion of the personal space to the side really confuses all of my test subjects, they invariably back off, often stop tailgating all cars even once past me. I think the confusion factor is there because they cannot formulate the proper response. I know how to respond to someone crowding, you either move or feed them a fender. Most feeble minded drivers cannot grasp such. It is a wonderful manuever in the sense you do not create any hazards of speed changes or put yourself in a space to be brake checked. I despise the brake check, because it inflammes egos and really stacks things up about 30 cars back in heavy traffic.
On a related note, I knew exactly how wide my old car was, I would drive around base ticking the little plastic stands in the crosswalks with my mirrors, just for fun. I had one guy who I watched for 30 miles brake check people, block, weave in and out, test the shoulder, gesture etc. Meanwhile, I kept up without any of that, amazing isn't it? Well, traffic cleared out onto one of my favorite exit ramps, it is a two lane sweeping right hander with a little uphill. I usually run through it at 90 if it is clear just for a cheap thrill. This guy is ahead of me and for no good reason other than expression of ire I pass him in the inside lane doing 80 which is about ten faster than he, just barely ticking his right side mirror with my driver side, purposefully of course. Fella settled down after that, nary a paint mark on my mirror.
Draft? If I am towing I will draft if I can find a big truck doing 65-70. not tailgate, but a one second interval, when you get 8mpg towing, it really helps.