Ok, this thread has robbed me of my innocence.
Foolishly when I was looking on yahoo answers for a description of spankwire I came across the link. I got about 20 seconds in and then some guy cut his penis open. I quickly pressed back on my browser. Not too much damage done, I can live with that, but I should be more careful in the future.
Having learned my lesson I decided to just read about the three guys and a hammer one, but the descriptions I read were pretty graphic. I haven't seen the video, but it's disturbed me already.