I came very close to seeing Patrice O'Neal this summer at the comedy festival. I didn't know anything about him, but his show was recommended to me, and so I got some tickets. Turns out he wasn't let into the country, so I exchanged my tickets for Kim Noble's show "Kim Noble Will Die."
I'm going to go out on a limb and say that Kim Noble's show was more disturbing than O'Neal's show would have been. Some of the most harrowing "comedy" I've ever seen.