While we're on that subject, don't cycle whilst drunk, either. Admittedly, it's not quite as cool a way to get an injury, but it fuckin hurt anyway.
Edit - I didn't realise how big this photo is haha. Zoom in for gooey, bloody, goodness.
[Blocked Image: http://dl.dropbox.com/u/7557268/Misc/2011-08-20%2003.14.13.jpg]