In my humble opinion, the best funny prank videos come from the series Jackass. Admittedly, Jackass funny prank videos aren’t for everybody. Some people don’t see the humor. Instead, they find them revolting. The Jackass funny prank videos on the YouTube site definitely aren't for the faint hearted or squeamish. Indeed, you have to have a particularly warped sense of humor to appreciate them. I find Jackass video clips hilarious even though I sometimes have to stifle the odd retch when I watch them. These funny prank videos are amusing to me because I wonder how somebody could be so very stupid. In one of the videos, Johhny Knoxville dons a mask with a tube and funnel attached to it. Then he sits there vomiting while a disgusting sweaty fat man actually defecates into the funnel. Why would any sane man let somebody do something that gross to him? In the below video, Johnny Knoxville wears an Abraham Lincoln beard of leeches. At one point, he actually allows the leeches crawl into his mouth. The video clip is there if you want to watch it, but don’t blame me if it makes you gag.