Haha, I love how to justify your argument you've posted a picture of Shaun white with grazed chin!! I thought I would see a picture of some kid with a fucked up jaw (which before you do you're google image search, I'm sure there are photos of!).
I think we should all get armoured gloves in case one of us breaks a finger nail!
comparing a severed carotid artery with a finger nail is a very similar injury. You're replies are no longer worth my response. Grow up.