Oh goodness! Holden did something similar not that long ago, he was v. upset by some people who'd come over (he doesn't like people and esp not people who bother him) and I went to pick him up and I hadn't clipped his nails in a while, so his claw pierced right above my cheekbone and I ended up with a black eye
I actually posted it in the member pic gallery haha
I was more bothered that he was SO upset to have done that to ME of all people, because he NEVER gets so freaked out that he lashes out at me, he trusts me more than anyone