The first time I heard of the Koch brothers, I was out for beer with some friends I hadn't seen since high school. We were sharing what we'd been up to, and one of them looked at me (the enviro) oddly as he said he now had his own company, but he'd been previously working for Koch Industries.
Intrigued, I asked him what Koch Industries did. He looked at me like I was a half-wit and said "Evil, man. That's what they do."