I'm watching the Jackass movie right now, and I am transfixed. I rarely laugh out-loud when watching movies by myself, but Jackass invariably does it. It reminds me of A.O. Scott's brilliant essay on boffo humor. I think it's partly so appealing because it's the shit you'd do if you were completely uninhibited by conscience, society, responsibility, and pain threshold.
Speaking of pain threshold, there's a new MTV show called Scarred. They've been playing commercials for it all night. In one, a skateboarder disconnects two of his fingers from his hand; the bones jut through his palm. Now, I'm media-savvy and mostly desensitized to visual imagery, but I have to cover my eyes during each advertisement now.