[SNL's Church Lady] Oh, well, let's see; could it be....Sssatan?!
Then there's a whole laundry list of substances ranging from crack to alcohol that can evoke such behavior.
Frankly, I think there are even a few out there who take that "OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR" thing just a WEE BIT too seriously. True, you APPEAR to be trailing them six car lengths back, but in reality you're practically riding their butt, and need to be taught a lesson. After all, The Oracle Of The Mirror never lies.
By far THE BEST cure for such insanity was practiced to great effect at a local High School in my area many years ago. It seems that one of the students decided to pull his long, low, and slow Chevy Impala out of the campus parking lot right in front of an oncoming four-wheeler. The surprised driver — with no hope of stopping, and only a fractional second to choose his fate — jammed the transfer case lever into the 4-wheel drive position, and made the best of a no-win situation by driving up onto the back, all the way across the top, and right on off the front of the hapless Impala. On the way over, the skid plate on the front differential punched through the rear window, hooked the back edge of the roof, tore it off of the B-pillars, and left it laid out across the hood like the peeled back lid of a sardine can. And, for a finishing touch, as the rear wheels dropped off of the front of the car, the rear bumper of the 4-wheeler put the Pile Driver to the Impala's hood, blowing out the skinny front tires, and the hydraulic suspension.
I was waaay off of him, and was quite perplexed as to why he chose his action.
Of course, the Semi behind me was less perplexed, and vastly more perturbed by the display.
I did smile and wave as I calmly changed lanes and passed the guy.
I had several car lengths to go before I had to worry much about hitting him.
Impala: Built for last.