This adult cartoon is DEFINITELY for adults. For this list, well be looking at the scariest, most intense moments from Trey Parker and Matt Stones animated sitcom. Our countdown includes How the NSA Collects Information, ManBearPig, Kenny's Deaths, and more! Which South Park moment gave you nightmares? Let us know in the comments.Watch more great South Park videos here: Top 10 South Park Jokes that Crossed the Line: