I remember well the Reginald Denny incident. I remember my first thought was "WTF did he get out of the truck?" If that had been me, they'd still be picking bones out of my front grille.
As it was, I had a little encounter of my own in Oakland during the Rodney King riots, and if I hadn't been prepared beforehand, I would be dead.
Yep, an 18 wheeler should be used as it’s own weapon. That won’t work for little cars, but maybe SUVs, with sufficient clearance. In any event, I’d rather drive over folks than get pulled out and beaten to death. Just don’t stop, no matter what.