I just watched a documentary on Netflix, called "Tread". Absolutely one of the best shows I've ever watched. It's about some knucklehead, that thinks the small town he's in....Granby Colorado...is making every effort to personally fuck him over, in conjunction with a clique of long time friends and corrupt politicians, along with an cement contractor/excavation company. So this guy Marvin Heemeyer, whose all pissed off, goes and buys a Kamatsu D355 bulldozer, which is about the equivalent of a Cat D10. They are fucking huge, and heavy. So he goes ape **** armor plating this thing, almost like Clint Eastwood di in "The Gauntlet", except BETTER. He's putting 2 1 inch plates separated with concrete on this thing, it's impenetrable with anything less then an Apache chopper, or an M1 Abrams, and then he sets out to get revenge, and it was national news for a nano second, because Ronald Reagan died the next day. I highly recommend it, it fact, it's making me want to go to a toy store, and by a remote control bulldozer to play with!