^So much evil in the heart of one man. How? 

Fat people have enlarged hearts.
Interesting.
How do they have so much darkness in their souls tho?
Well, the idea that the fat person is fat because he/she is a fat lazy bastard is foreign to the fat person. So to make sense of the fact that he/she is in fact fat he/she starts blaming the world.
* I am not referring to the fat person as he/she of PC reasons. It's just very hard to tell sometimes.
I find that too much jaegermeister further dulls my ability to make the distinction, often with hilarious results...