Purple-Shirted Eye Stabber

The Purple-Shirted Eye Stabber is a recurring character on Cyanide and Happiness. As his name suggests, he usually uses knives to stab random people's eyes, for no apparent reason. He appears in various comics, and a Cyanide and Happiness short called "Return of the Purple Shirted-Eye Stabber."

Return of the purple-Shirted Eye Stabber
The short starts with two boys fleeing from an unseen figure which one refers to as the Purple-Shirted Eye Stabber, and one of them is stabbed in the eye with a knife by the figure. It then pans out to show a couple watching it as a movie on the TV, to which the boyfriend says is stupid, but they are frightened when the power goes out. When the power comes back on, a repair man arrives and says he fixed it, but he is then stabbed by the killer, who then presumably attacks the couple. It pans out again to show that was a movie inside of another movie, to which two movie snobs critic the film's self-reference technique, and the eye stabber kills both of them in a moment of annoyance, but the entire short was footage in the Eye Stabber's murder trial, at which point the judge is revealed to be the killer, and he kills himself out of guilt. However, this is revealed to be part of yet another movie, at the end of which the real eye stabber comes through the screen and attacks the audience.