Pretty freaky, huh? That's the kind of scene that's usually preceded by the bloody guy explaining "I got mugged on the way home from work by some crackheads or something, and one of 'em bit me" followed shortly by somebody else saying/screaming, "Shane? Shane, what's wrong? What...what are you...NO! DON'T! NOOOOOOOOOOOOOOOOOOO!" [fade to black]
Tha man responsible? Sasha Vujacic of course. Shocking.
Note: Bonus bawful points go to the first person who can correctly name the movie I quoted in the caption. AND NO FAIR GOOGLING.