There are some celebrities who are meant to stay in the past. Dustin Diamond, for example. Unfortunately, a rather unusual sex tape featuring Diamond with two women served as Screech's disturbing reintroduction to pop culture, tarnishing all images of the adorably awkward boy of daytime television. The tape features multiple sex acts, including a Dirty Sanchez. Disturbing! If you don't know what a Dirty Sanchez is, I refuse to be the one to scar you. Look it up yourself.