“I think he spent too much time by himself, sitting out in his hot tub…”

Convinced the residents of a small Colorado town united to ruin his life, Marvin Heemeyer went bonkers in 2004.

Using impressive mechanical skills, he turned a bulldozer into a homemade tank, then leveled half of main street.

It’s a sensational true story, largely ignored in the outside world as Ronald Reagan’s death the next day captured the news cycle.

Now, thanks to this documentary, which uses extensive tape recordings left behind by Heemeyer, you can witness what happens when people stop being polite … and start getting real.