11. The donkey show in Clerks 2 (2006)
There's a very specific audience for Kevin Smith's aggressive brand of potty-humor and overly smutty comedy, and in Clerks 2, the typically raunchy sequel to his classic indie breakthrough Clerks, the shameless writer-director reached new heights of mirthful disgust.
The scene in question, which shouldn't come as a surprise for anyone who's seen the movie, is the "donkey show" moment, where a poor jackass is forced to endure some homoerotic man action. Even for Smith, "Kinky Kelly and the Sexy Stud" is shockingly vulgar, not to mention very queasy.